code 0 catamaran

Know-how About Sails

Step-by-step guide: how to sail a code zero on a catamaran.

• About Sails , Multihull
• Catamaran , Code Zero , Multihull Sails , Video

Flying a Code Zero on a cruising catamaran

Handling a Code Zero sail on a modern cruising catamaran: This informative and inspiring how-to-video was made by the Australian multihull experts of TMG Yachts , after taking delivery of a new Rolly Tasker Sails Code 0 . This sail was tailor made for the Lagoon 46 catamaran featured here by Rolly Tasker Sails Australia . So, for the exhilarating experience of flying a Code Zero sail , come along on board and learn how to safely and efficiently handle this exciting sail on this special type of boat with this clear and concise step-by-step guide.

What Is a Code Zero or Code 0?

In this video, Joe Fox of TMG Yachts not only shows the practicalities of sailing with a Code Zero, but he also explains the difference between a Code Zero and an asymmetrical spinnaker . He then takes us through all the steps in setting up and preparing the Code 0, including some finer points like, for example, halyard tension.

The Code zero sail is somewhere between a large Genoa and an asymmetrical spinnaker . Lighter and larger in area than the Genoa, it is also furled . It is however a true downwind sail , made for broad reaching .

Code Zero Practicalities

When do you best fly your Code Zero ? Learn about wind range and wind angles most suitable for this beautiful sail. The video also gives a very detailed and clear step-by-step guide to hoisting and unfurling the sail . Once it is up and pulling, learn all about the perfect trim and how easy it is to gybe this sail in relaxed cruising mode.

As already said, the Code Zero is a downwind sail for up to 150 degrees or so off the wind. It is not suitable for any courses closer to the wind than a beam reach. And even the beam reach should only be sailed with the Code 0 in really light winds – especially on a catamaran, there is huge pressure on the rigging, and you do not want to over-power that. For a cruising cat, Joe recommends the wind speed limit for a Code Zero at 15 to 20 knots . And the stronger the wind is, the lower off the wind you should sail.

Feel the Thrill

This video is great fun to watch, it will inspire you and make you want to get out on the water now to experience the thrill of fast sailing! The Code Zero sail can really turbo charge your cruising catamaran , adding several knots of speed, especially in light airs. However, apart from literally showing you the ropes of how to do it, it also points out potential problems when you are not taking care …

Have fun both when watching the video and also, of course, out on the water!

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How to Fly a Code Zero on a Catamaran

Inspire and learn sailing techniques.

Welcome to another Inspire and Learn guide, brought to you by TMG Yachts. In this instructional piece, we delve into the intricacies of flying a Code Zero on a catamaran, specifically the Lagoon 46. Join our expert, Joe Fox, as he walks you through the setup, preparation, and manoeuvres involved in harnessing the power of this versatile sail.

Code Zero Hoisting

Before hoisting the sail, make sure all fixing points are attached, including the sheets and halyard. Hoist the sail from the helm station, ensuring that the halyard is tightened sufficiently. Be mindful of the wind direction, as it may push the sail against the rigging during hoisting. Once hoisted, secure the sheets and ensure the furling mechanism is engaged to prevent accidental unfurling.

Before Using the Code Zero

Before turning away from the wind to utilize the Code Zero, it’s crucial to prepare the sail for unfurling. Ensure that the mainsail is fully hoisted. Run both the port and starboard sheets up to the winches for control. It’s essential to ensure that all lines are free to run, especially with the potential pressure from the wind. Load the working sheet onto the winch corresponding to the side from which the sail will come out and ensure that the lazy sheet on the opposite side is completely free to run to prevent disruption during unfurling.

Trimming the Code Zero

Once the Code Zero is unfurled, trimming becomes essential to optimize its performance. Similar to trimming a Genoa, pay attention to the tell-tales on the windward and leeward sides of the sail. Adjust the sheets accordingly to achieve optimal sail shape and efficiency. Be mindful of the wind angle and adjust the trim as needed to maintain the desired course and speed.

WATCH TRIM VIDEO HERE

How to Gybe – Cruising Gybe vs Racing Gybe

Since the Code Zero is primarily a downwind sail, tacking is not possible,  as the sail is hoisted in front of the forestay , instead you must gybe .

For  a cruising gybe, start by heading downwind to reduce the apparent wind on the vessel. Ensure the furling line is ready, and as the sail is eased,  furl the sail, then  prepare to gybe the boat.  Once the gybe with the mainsail is complete, and  the boat is on its new trajectory, unfurl the  Code 0  sail on the opposite side to continue sailing downwind smoothly.

For those with more advanced skills or experience in racing, a racing gybe can be executed. This involves threading the sail between the Code Zero itself and the forestay  without furling the sail , requiring precise timing and technique to ensure a smooth transition

Flying the Code Zero is an exhilarating experience that can significantly enhance sailing performance in light wind conditions. While it requires careful planning and maneuvering, mastering the use of the Code Zero opens up new possibilities for sailors seeking to maximize their speed and enjoyment on the water. Whether cruising or racing, the Code Zero is a versatile and valuable addition to any vessels sail wardrobe.

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Home > Education & Expertise > Downwind and Light Wind Sails > Code Zero

Code Zero Sail

The Code Zero is a spinnaker-genoa hybrid. It’s designed to operate like a genoa but considered a spinnaker under racing rules (depending on its dimensions). This cruiser’s dream sail helps a boat’s performance in close reaching angles, especially in lighter winds, by generating much more speed than a slightly eased head sail. These sails also reach very well in moderate wind. A low stretch Vectran/Dyneema line or a torsion cable is normally used for the luff, and the sail is tensioned firmly to get a straight luff (a lot like a genoa).

A Code Zero has a mid girth of 75% of the foot length, so it measures as a spinnaker but has a much bigger area than a genoa. The optimal wind speed for this sail is 3 to 18 knots true wind speed and in lighter winds, you can carry this sail up to a 45-degree true wind angle. Typically they are designed to be flatter than a spinnaker and have a straight leech exit.

High-quality Code Zeros that’ll stand the test of time, no matter what you’re up to.

What makes a code zero.

The Code-Zero should be recognized as a spinnaker in the racing community, which means it must have a Mid Girth (MGM) no less than 75% of the Spinnaker Foot Length (SF).

The Code-Zero should  have a solid luff, unlike drifters or Asymmetric Spinnakers which are free-run, attached only at the head, tack, and clew.  The Code-Zero is run off of a dyneema or torsion line that keeps the luff straight and more rigid allowing it to point higher than an asymmetrical spinnaker but has a Leech Curve (as opposed to a hollow) increasing Sail Area and allowing the sail to power properly in low winds.

The torsion line is either built directly into the luff of the sail, or will use a system such as a zipper luff which allows the torsion line to be installed and removed easily.  Often furling systems such as Harken Reflex, or Profurl SPINEX, come with a specialized torsion line.

Construction

Code Zeros can be made out of either Spinnaker Nylon, a lightweight Dacron, or a Code Zero lightweight laminate (such as Contender ZL series).  As Code-Zeros are run at varying degrees and can function at a reach it is easy for sailors to push the limits of the intended speeds and angles causing damage to the sail. It’s important to know if you are going to need a sail that is more durable, lighter weight, or more performance driven – each of which has advantages and disadvantages. As a baseline, Precision Sail’s code zeros are designed with a zipper luff to allow a torsion line to be added/removed for storage and cleaning.

Heavier woven cloths, such as a 4oz Dacron, will provide durability and if you’re leaving the sail up for weeks at a time, Spinnaker Nylon is very lightweight 1.5 – 2oz, and will allow you to sail in very light winds. Finally, laminates are very performance orientated, with low stretch and very consistent sail shape; there’s also so much armamid in the Code-Zero laminate cloths that it’ll push your boat over before causing damage to the cloth, making it great for offshore sailing. A Code Zero Laminate will provide both lightweight performance in light air, and durability while crossing the pacific for an offshore catamaran cruiser with a displacement of 15,000 KG.

Catamaran Code-Zero

Many catamaran cruisers love to run a Code-Zero, just listen to Sailing Nahoa who rave about theirs!  While there are many advantages, it’s important to note that you’re going to be restricted by the rigging for how the sail is going to be able to point.  If the wide shrouds don’t allow you to sheet the sail in tight, you may not be able to hit 45° that many people expect out of the Code Zero.

Sailing Resources

Read more about Spinnakers and Code Zeros to help ensure you know what you want to know!

All About Spinnakers

Sailing With a Spinnaker – Asymmetrical Basics (Gennakers and Light Air Sails)

Sail Graphics, Colored Dacron and Color Customizations

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THE LANDING: BLOG

Cruising the code zero.

Chuck Skewes of Ullman Sails San Diego

By Chuck Skewes of Ullman Sails San Diego

Many sailors, especially cruisers, shy away from cruising the code zero, despite the sail’s versatility and ability to add significant increases in boat speed. In this article we remove some of the mystique around this specialty sail and explain how it can be used to enhance anyone’s sailing experience.

What exactly is a code zero?  

Officially a code zero is a spinnaker for use in tight-reaching in light air – that’s it!  The sail tends to be the smallest spinnaker in any sail inventory, whether racing or cruising.  Racers have discovered that because of its size and applicable wind strength and angle ranges, the sail has benefits for racing performance while avoiding rating penalties. However, the practical applications of the sail apply just as much (if not more) to cruising boats.

The code zero was introduced in the 1997/98 Whitbread (now Volvo) Round the World Race.  The event winners, Paul Cayard and the crew of ‘EF Language’, used a very small, tight-reaching spinnaker that could be used while the other teams could only use their genoas.  It was very successful and since its introduction racers around the world have followed suit.  The sail is considered a spinnaker instead of a genoa because of its dimensions.  Sails built with a mid-girth length (the shortest distance between the leech mid-point and the luff) greater than or equal to 75% of the foot length qualify as spinnakers. The code zero meets this requirement. The mid-girth measurement is used in the rules to prevent teams from making 180% genoas and calling them spinnakers without the sail impacting their rating.

How does the sail cross-over for cruising?

Since cruising sails don’t have to meet any racing requirements we can actually make a much better sail for cruisers.  The sail works like a very light, very large genoa.  With a cruising code zero we can make the leech much straighter vertically, which allows us to make a straighter exit for the wind.  This reduces heel and makes the sail more efficient and versatile. Essentially it provides more horsepower in light air, making sailing much more enjoyable. It is ideal for modern boats that have small non-overlapping headsails.

If someone occasionally races in beer-can races, can they use the cruising code zero to race?

A cruising code zero will rate as a genoa, so if it is larger than your largest genoa (and they always are!) you have to report it or not use it.

What wind ranges and wind angles do you use a cruising code zero in?

You can typically use a cruising code zero from 70° true wind angle (TWA) in very light air up to 110° TWA in 15+knts.  Ultimately it depends on the righting moment of your boat and how comfortable you are with how much the sail may make your boat heel in significant breeze or at tighter angles.  Most cruising code zeros are designed primarily for use in 85°-100°TWA.

How much extra performance should I expect to get out of a cruising code zero?

In light air the added speed generated from the sail is significant.  It often more than doubles your sail area and can increase performance up to 30% as compared to a non-overlapping genoa.

If a code zero is for light wind, does that mean I’ll be motoring less? Do you use it for offshore cruising? Or would I use it in a harbor as well?

We use the code zero anytime the wind angle and wind strength are correct, whether we are in the harbor or on a long cruise.  The light air performance will allow you to sail more and motor less, which, at least among our customers, we’ve found is typically the goal.

Are code zeros furling sails?  Are they easy to launch?  How many people do you need to do that? 

Ullman Sails can design a code zero either as a furling sail or to launch from a sail bag.  I recommend furling because you can set it up at the dock and easily roll and unroll the sail as the wind velocity and your angle change.  Also, if you furl the sail, it can be used while single-handing. If you bag launch the sail you will want 3 or more crew on deck.

Have you had experience cruising with a code zero?  Do you have a question we didn’t answer? What impact did it have on your sailing experience? Any advice you can offer to other sailors considering adding the sail to their inventory?

About Chuck Skewes A Seattle, Washington native, Chuck is an avid pro sailor and sailmaker.  In just the last year Chuck has been part of the winning crews in the International Masters, Beneteau 36.7 West Coast Championships, and the Tjorn Runt in Sweden.  He is also the loft manager at Ullman Sails San Diego and Ullman Sails Pacific Northwest. Chuck currently resides in San Diego and has been sailmaking since 1984.

Code Zero: The Cruiser’s Dream Sail?

By joe citarella.

My son and I recently purchased a Jeanneau 36i from Eastern Yacht Sales in Stamford, CT that has a 130% jib. The tracks do not allow for anything bigger, so we thought about a cruising chute. The Jeanneau is like many newer boats that have smaller fractional jibs measuring less than 130%, which means that keeping the boat moving in low wind speeds is challenging.

One popular option I discussed with Chris Wentz at Z Sails in Stamford is the asymmetrical cruising chute – no spinnaker pole required. However if you are short on crew, setting and snuffing the chute can be a one-armed paperhanger drill. Some cruisers will turn to their engines in light winds. I’d rather sail. After some discussion with Chris on alternatives, we settled on a Code Zero jib (also sometimes called a JibTop), an increasingly  popular cruising sail.

It’s become popular for cruisers to call these sails Code Zeros, but to a racer a Code Zero is a very different sail. To them it’s a sail that conforms to the definition of a spinnaker, meaning the mid girth is not less than 75% of the foot girth. Thus a racing CZ is a bigger sail, but not as close-winded as the cruising CZ or JibTop.

A cruising Code Zero looks like a genoa on steroids – think of a 180% genoa and you start to get the picture. It is intended for low wind speeds (typically 12 knots or less) and sailing angles between 80-125 degrees true. More important for the cruising sailor, it can be set up for roller furling. With roller furling genoas and mains the most common setup for new boats, a roller furling Code Zero is becoming the preferred third sail in the cruiser’s inventory.

Unlike a true genoa, the Code Zero is not an upwind sail. It may be possible to use it close-hauled at very low wind speeds in a flat sea, but that’s not what it’s designed for. Its forte is off the wind, but not like a spinnaker for a dead-downwind run. It’s not cut as full as a spinnaker, but fuller than the usual genoa. The sailcloth typically is 2- to 3-ounce compared to ½ to ¾ ounce for spinnakers. Also it features a higher clew than a decksweeping genoa. The high clew facilitates more even trimming from top to bottom when eased, with the added benefit of improved visibility.

A Code Zero is tacked ahead of the genoa – either on a sprit or on the anchor’s bow roller. Furling sails require high tension to furl effectively, so if the sail sets on a sprit it must be well supported or very robust. Obviously the roller drum must clear the other genoa’s furler drum. The head swivel attaches to the spinnaker halyard. The sheets are run as far aft as possible, similar to a spinnaker.

The cost of a Code Zero is more than for a cruising chute – the roller furling gear can run up an additional $2,000 – so it’s not a cheap option. For me, what’s more important is how much use I’ll get out of it compared to other options. On this point, I’ll spend the extra dollars.

An avid sailor for 40 years on Long Island Sound, Joe Citarella started by building a Sunfish-size kit boat with a friend and has owned a number of boats since, the latest a Jeanneau 36i. He is a Past Commodore of Breakwater Irregulars, a racing group based in Stamford, and a member of the Halloween Yacht Club.

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Code 0, the light and powerful sail for sailing close to the wind

While summer and high pressure are installed on your navigation basin, you dream of a few extra knots to move your sailboat. Code Zero then becomes your best friend with its few extra square meters to get you moving.

Where does this Code 0? come from?

It seems that this terminology was coined during the 1998-99 Whitbread to define a flying canopy to be used upwind. There were already Codes 1, 2, 3... for sailing from full throttle to close hauled. The term Code 0 was coined to define a sail capable of sailing at tighter angles than any other flying sail . Over the last two decades, the evolution of materials and designs has made it possible to create very specialized sails for light airs.

A large, light, free edged genoa

The Code 0 is a kind of large, very light genoa that can be sent in the manner of an asymmetrical spinnaker or as a gennaker. This sail allows to tighten the wind in very light winds. With blocked materials such as laminated fibres and a fairly flat design you will almost be able to sail upwind. On the other hand, a slightly flexible fabric and a hollow shape will not allow you to sail upwind beyond 80°.

Who is the Code 0? for?

When the calm settles in, this sail is particularly useful on racing boats without a motor. However, it is gradually gaining ground on cruising yachts , which sometimes suffer from overweight and low overlapping headsails. Code 0 with furlers is becoming a relevant solution for increasing sail area in light airs.

In regattas, can we use the 0? Code?

If you are a handicapped regatta sailor (IRC ORC...), you will be tempted to take such a sail on board. However, be careful with the measurements, otherwise your sail could be considered as a genoa, which would significantly increase the handicap of the boat . In IRC, the sail must be at least 75% of the edge at 50% of its height, in other words the shape is closer to an asymmetric spinnaker than to a genoa.

Can we turn around with a Code 0??

Tacking is not really the strong point of this sail , which will be more willing to gybe. However, if you wish to tack with Code 0, you will have to furl it in a large part before changing tack.

What are the criteria of qualité??

To be effective, the fabric should be "blocked" as much as possible with laminated materials. A nylon sail , such as a spinnaker , will only have a small range of use. In fact, when tacking to get closer to the wind, the leech will recede until it closes, which will then dump its wind into the mainsail ... all this is not very effective.

If you are using a furling system, the quality of the anti-twist luff rope is essential to roll the sail in all circumstances. The price of the rope is often directly related to its anti-twist properties. Some manufacturers such as All Purpose have developed Codes 0 that integrate the anti-torsion effect into their structure. This solution has already been validated on many racing boats and could soon win the pleasure boating market.

Can we keep the Code 0 in the mail and enroulé??

A Code 0 wrapped around its cable is a sail that will be quickly unfurled or stowed away. This equipment is not designed to stay in place full time. Although it is possible to keep it rigged for a few moments, it should be lowered as soon as the wind conditions cool down.

Quantum Cruising Code 0: For All the Angles In Between

January 28, 2016

With no restrictions on design, the Quantum cruising Code 0 is created to be a very forgiving sail, perfect for light air on close angles upwind, at very broad angles in heavier breeze, and all the angles in between.

The Quantum Code 0 for cruising monohull sailboats is a full sail, shaped like an asymmetrical spinnaker, and furls easily on a top-down furling system. While the midgirth of the racing Code 0 is restricted to at least 75% of the foot length, the cruising version of the sail has no restrictions, giving the sailmaker a lot of leeway in design.

“You can make the midgirth anywhere from 55% to 75% of the foot length, allowing you to make them very deep and very flat,” says Quantum’s VP of Product Integration and sail designer Doug Stewart.

Many cruisers are intimidated by downwind sails, especially when sailing shorthanded or with inexperienced guests. The Code 0 is perfect for cruising boats because it is easily deployed on its furler and has a UV strip to protect it during a whole weekend or several days of use so that it doesn’t have to be taken down. “We find people will use this headsail more than any other on their boat,” says Stewart.

How And When To Use The Code 0

The sail can be used at relatively tight angles in light air, and at very broad angles in heavier air. “It will take you through more wind angles than any other sail on the boat. Your kite is for downwind, your genoa is for upwind; the Code 0 is for all the angles in between,” Stewart says.

Rob Greven of the Netherlands-based Spirit Yachting first added a Code 0 to his sail inventory in 2009. “I was looking for a sail within my budget, easy in handling, good performance and reliable, and covering most of the wind angles.”

Now he says, he uses the sail on his Beneteau Oceanis 46 Spirit with clients and with his crew, on everything from short day trips to long-distance singlehanded racing—even the Rolex Fastnet race.

“We don’t carry a big genoa, so we use the Code 0 in light winds upwind—depending on the wind, up to around 40 degrees AWA. In the wind range of seven to eight knots, it’s possible to make seven to eight knots of boat speed. Even with our cruiser, it offers excellent performance.”

Greven says the versatility of the sail even extends to downwind running in stronger breeze between 18 to 24 knots at an angle of 160 to 170 degrees. “I’m able to sail light on the helm and with good control.”

He also carries a Quantum Vision Code 3 for downwind sailing with a full crew, but says the Code 0 is easier to use when sailing short- or singlehanded. “Since the sail is a little smaller and flatter than the V3, it’s a perfect sail for shorthanded sailing, even in stronger winds. It is better on the helm and easier to furl away,” says Greven.

Taking Care Of The Sail

While the cruising Code 0 is designed with a protective UV cover, that cover is still very light. It will easily survive several days of use, but if you won’t be on the boat for a week or more, take the sail down, put it in its bag, and store it down below. Also, as with any sail furled on a torsional rope, if a storm blows through, there’s nothing to stop the sail from opening up. So if inclement weather is approaching, get the sail off the deck.

The Sail Sells Itself

Greven would be the first to recommend the Code 0 to other cruisers, but says the sail sells itself.

“Last autumn, I sailed a singlehanded regatta, several days from one place to another. I almost only used the Code 0 in light winds and got a lot of positive response from other sailors.”

So while choosing a new sail for your inventory depends largely on what kind of sailing you want to optimize for, be sure to check out the Code 0. The versatility of the sail, combined with ease of use may very well prove to be the next best sail on your list.

Top Eight Misconceptions About Code 0 Sails

The Quantum Sails Racing Code 0: Take Your Program To The Next Level

The Discussion

“You can make the midgirth anywhere from 55% to 75% of the foot length, allowing you to make them very deep and very flat,” says Quantum’s VP of Product Integration and sail designer Doug Stewart. Do you an article that explains this? I'm preparing my boat for some extended voyaging and have never been happy with light air performance. I want to understand it better so I know what to ask for. PS my spinnaker gets over powered at 18kts so I'm digging the 18 to 24 aspect you talked about!

Bob, Give us a target range of wind angles and velocities you want to cover, let us know what you have already and what range they work in, and tell us a little about the type of sailing you are doing and your goals and we can craft the perfect addition to your downwind inventory. For reference, check out… https://www.quantumsails.com/Resources-and-Expertise/Articles/Top-8-Misconceptions-About-Code-0-Sails David Flynn ([email protected])

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Light Wind Sailing Skills: Code 0

• November 1st, 2019
• Sailing Skills

Although we all love sailing in nice conditions with true wind speeds between 15 and 20 knots under full canvas we often have to take in much, much lighter wind conditions with wind speeds well below 10 knots. Often this means no casting off for boats as skippers think (or know) that their yachts won´t perform under these conditions. My experience with cruising boats is furthermore, that yachts fitted with in-mast furling mainsails and self-tacking jibs sufficiently lack sail area thus needing much more wind to pick up speed. A cure to light wind conditions is a Code 0.

Last week during a commissioning and handover of a brand new Oceanis 46.1 to a client I was happy that the couple had followed my advice and equipped their pretty yacht in addition to self-tacking jib and in-mast furling main with a large Code 0. So that was my first time too with a Code 0. What does “Code 0” mean? Well, first of all the Code 0 is used in wind speeds of below 8 knots true, some ride it in winds with with max 10 knots. The Code 0 is a sail that is best utilized in 45 to max 90 degrees AWA and is considered the lightwind-upwind sail. For wind angles greater than 90 degrees, a Gennaker is the sail of choice.

Installation and start-up of a Code 0

Most Code 0 light wind sails are offered as a package together with a furling mechanism on a continuous reefing line and a swivel shekel . It comes as a handy package and for a boat with 46 feet like the Beneteau the Code 0 can be carried by one man, although it´s pretty heavy. Fitting the sail is as easy as ABC.

First of all you fit the furler to the bow sprit of you boat. Make sure your yacht is light wind sails-approved as the bow sprit needs to have a martingale stay: Even in light winds these large sails can deliver quite some punch of tensile force into the GRP-bowsprit of a boat. Fitting the furler is a no-brainer since this is done by means of a simple shekel. Make sure you have a safe stand on the bow sprit, maybe refrain from installing the sail when underway as you may fall off the boat.

With the furler – in this case a Facnor FX 2500 – I did have some starting problems. As the reefing line was very thin it happened almost every time we unfurled the sail that the reefing line was pitchforked out of the furler through the stainless steel openings you may detect on the pictures. I tried to avoid this effect by changing the angle in which the line enters the furler and adjusting the tension in the line: The reefing line is lead abaft over a block that is attached to the stanchions. Neither of both helped.

After talking to the pros they gave me two hints: Either choose a thicker reefing line or – better choice – use the two holes in the stainless-steel bearings to fit some thin Dyneema between them so that the reefing line cannot leave the leads. Since we adjusted this detail, furling and unfurling of the light wind Code 0 worked flawless. Sailing a Code 0 however is pure pleasure!

Light wind performance of a Code 0

Since you only take out this sail in very light wind conditions, meaning in nice weather, you do not have to expect much hustle on your yacht. Unfurling is done most of the part by the wind itself. You just put the leeward sheet onto the Genoa-winch and trim the sail – off she goes! Manoeuvering under Code 0 is on the other hand bit tricky and needs to be practiced, however, again since you utilize this kind of sail in light wind conditions, don´t expect too hard practicing.

A tack is done by furling in the Code 0 almost completely, then put the bow through the wind and have the Code 0 unfurled again. That is the only way to get the large sail area safely around the forestay with your furled Jib/Genoa. Gybing is easier: You just put your stern -slowly- through the wind and ease the windward sheet by at the same time taking in leeward sheet. Try to have the Code 0 filled with wind from abaft all the time. Direct the sail around the forestay with both sheets and complete the gybe. This action will take some time to practice and is done best with two people working both sheets. Advantage of gybing over tacking with a Code 0 is that you do not have to take in the sail thus won´t lose any speed.

I was astonished of how easy the Code 0 is utilized. Once fitted to the bow it is even easier than flying a Gennaker . Once sheeted and trimmed the Code 0 will deliver quite a punch to your boat: When shaking down the Oceanis 46.1 in winds of less than 7 knots true our yacht was as quick as 6 knots! Amazing how efficient these modern laminate sails are working. From my point of view this shakedown cruise under Code 0 was a true revelation and for the future no question: Every sailing yacht needs a Code 0 for upwind/reaching courses in light winds and a Gennaker for downwind (and stronger wind speeds) for sure. You won´t buy a Porsche and save on the tyres, won´t you?

You may also be interested in these articles:

Gennaker sailing an Oceanis 30.1

Foul weather sailing tactics

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8 Common Misconceptions about Code Zeros

• By Quantum Sails
• Updated: June 30, 2016

The Code 0 has only really been around for 20 years, born in the Volvo Ocean Race, back when it was still called the Whitbread Around the World Race. They have characteristics of being an upwind sail, but are classified as a downwind sail. Some are built out of nylon, while others use a heavier, plastic-like material. Not knowing really what to call them, they are often referred to as a “Gennaker.” The result is, there are a lot of things we think we know about a Code 0, many of which aren’t true, or at least, not always.

1. A Code 0 is another name for a Gennaker.

Not necessarily. The term Gennaker can cover a Code 0, Screecher, or a reaching spinnaker. Gennaker is just a general term for a potential downwind sail.

2. A Screecher and a Code 0 are the same thing.

Nope. A Screecher is specifically a multihull term for a very large, very flat sail, for going upwind or just cracked off. Catamarans and trimarans have notoriously small jibs making them grossly underpowered in light breeze. A Screecher is larger, higher clewed, and fuller than a Genoa, but much flatter than a Code 0.

3. A Code 0 is strictly a racing sail.

Cruisers of all ilks have taken to the sail for its range and ease of use. True downwind spinnakers can be unruly and intimidating for a shorthanded or novice crew, but the range and furling ability of the Code 0 make it a fantastic sail for a weekend outing. We find that once introduced to the Code 0, cruisers will use this sail more than any other on the boat.

4. All Code 0s are created equal.

A Code 0 is a Code 0 is a Code 0, right? Not true. While the Code 0 for racing monohulls is restricted to a midgirth of at least 75% of the foot length and a leech that is no more than 95% of luff length, Code 0s for cruising boats and multihulls can be significantly larger and have a lot more variety in their design, from very deep to very flat. Quantum’s racing Code 0s and some cruising Code 0s are made with Dimension-Polyant CZ GP fabric, a stiff, plastic-like material, while Code 0s for multihulls are made with heavy nylon.

The most important question to ask yourself as a boat owner is, “What do I want to do with this sail?” Are you a racer or a cruiser? Do you want to use it to sail in very light air to sail relatively close to the wind, or will you use it on a broader reach? The answers to those questions will help your sailmaker determine the design of the sail that’s right for you.

5. A Code 0 is strictly a downwind sail.

A Code 0 is classified as a spinnaker in terms of racing, hence the restriction on the length of the midgirth, but it’s not a true downwind sail. If you’re going downwind, you’ll use either a symmetrical or asymmetrical spinnaker. While it does depend on the wind speed, especially for boats without a 155% genoa, there’s a lot of range between the jib and the first true spinnaker. As soon as you crack off even 5° from the range of the jib, you could be into Code 0 territory.

In very light air, up to eight knots, a Code 0 designed with a longer leech and lower clew can be sheeted inboard and used at a higher angle. A higher clew with the sail sheeted to the back of the boat is a reaching Code 0, and can be used in slightly higher breeze. In an ideal world, we’d sell every boat two Code 0s: One for upwind and one for reaching, but we know most boats can only carry one. Whether you’re a racer or a cruiser, it comes back to that question from the sailmaker—what do you want to do with this sail?

6. A Code 0 is a beast to get down.

Okay, so the early Code 0s did require an experienced crew to get them back onto the deck safely and cleanly. But today, the majority of Code 0s are designed on a top-down furler, making it possible for even a novice crew to go from the jib to the Code 0 in a matter of seconds. And while some more experienced crews may still forgo the top-down furler as a weight consideration, most boat owners find that the slight increase in weight on the bow offers them the ability to seamlessly change modes on a tenth of a knot, often for huge gains in light wind conditions.

7. A Code 0 is really expensive.

Early top-down furling systems required a custom-made torsional rope. Really good systems with a quality torsional rope were sometimes as expensive as the sail. However, with more and more manufacturers offering top-down furling systems and torsional rope now available pre-made on a drum (at least for mid-size boats), the overall cost of the sail and the system has come down significantly.

8. A Code 0 can do anything.

We just said that the Code 0 is appropriate over a huge range especially in light wind conditions, and being situated on a top-down furler makes it hugely convenient, even for novice sailors, however a Code 0 cannot in fact, “do anything.” We see Code 0s fail most often when they’re pushed too high in too high of breeze—this is a particular problem on multihulls because the boats are so stable. A Code 0 also can’t live indefinitely tacked to the bow of your boat. While cruising Code 0s will have a thin strip of UV protective material, if left indefinitely in the sun they are sure to shrivel up into a brittle, moldy end.

In racing, to maximize a Code 0, it’s important to know your crossovers. Be diligent about going out and recording wind speed and wind angle as you switch between your jib, Code 0 and spinnaker, and then stick to those numbers.

So there you have it. A Code 0 will take you through more wind angles than any other headsail on your boat. Add a modern top-down furler and it’s easier to get up and down than a spinnaker. Racing in light, shifty conditions, it might just be the sail that helps you eek out precious tenths, which turn into minutes or even hours on a long distance race. And they’re a whole lot less expensive than they used to be. The last question is, what are you waiting for?

This cruising tip is courtesy of Quantum Sails.

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Choosing a Code 0 or Gennaker Furler

• If you have a multihull this will almost always push you into the next category up due to the increased stability and therefore, loads.
• Due to the significantly smaller sail areas relative to code zeros and gennakers, on the same boat, Staysail furlers can often be a size range down.
• If so, the thimble width on your furling cable is critical to the specification of the unit.
• Various jaw widths and pin sizes are available across the different unit manufacturers, but this will limit your choice to a few suitable units
• Please do not forget jaw depth i.e. the distance from the pin to the back of the jaw. It is by no means guaranteed that this distance is enough to accommodate your thimble/cable.
• Despite the obvious choice of whether to go for a dedicated top-down furling unit, Top-down furling has other consequences on unit size
• Loads are much smaller for top-down furling and therefore you should be able to go down a size
• However, cable sizes are always bigger in diameter relative to bottom-up cables. This drives bigger thimble widths which often forces you to buy a larger furing unit than is required on pure SWL requirements.
• However, one good example is KZ Race Furlers from New Zealand where every unit is available with a range of jaw sizes - to allow a smaller SWL unit with a larger than normal jaw width to accommodate the larger thimble.
• But this flexibility does come at a premium price.

• If you have narrowed your selection down to a few possible options, drum diameter is another important consideration
• A bigger drum provides more torque / power which will be useful for a heavier, larger code zero
• A smaller drum delivers more speed - an essential component to successful top-down furling (N.B. the smaller the drum the more power and line speed you need to be able to generate from either your winches or your arms - depending on boat size!)
• Furling drum locks / ratchets are becoming increasingly popular, but they are by no means standard across the manufacturers.
• Code zero's and gennakers are always either fully furled or fully unfurled and historically people have been content to tie or cleat off the furling line when the sail is furled
• However, increasingly customers like the security of using a lock to prevent the accidental unfurl.
• Identify a suitable SWL range based on your boat size
• If you have a multihull - go one category up
• Is your displacement or sail particularly large/small which may influence the SWL above or below these average recommendations?
• If you have an existing cable - consider jaw width/depth and pin diameters
• If it's for top-down, you need to minimise SWL but consider all the other important criteria for effective furling and be prepared to accept the larger unit size
• Check your options on drum size and consider lock or no lock
• Finally choose the lightest one

Related Articles

• andrewmorrisey
• Apr 4, 2021

What type of Asymmetrical Spinnaker? Code Zero vs Code D.

Decisions – Decisions --- Code Zero or Code D?

What will be a better down-wind sail for our new Elba45 for our initial adventure coming down the coast of France-Spain-Portugal on the Atlantic side and then cruising in Mediterranean Sea next summer (2022)? What would be a better Asymmetrical Spinnaker, the Code Zero or Code D?

Both kites are on a roller furler which makes it much easier to douse, especially when a squall comes out of no-where. I do not think we will need a full Symmetrical Spinnaker until we do the Atlantic crossing. Looking forward to your comments and opinions on this one.

The Code Zero

The Code Zero is a cross between a genoa and an asymmetrical spinnaker that is used for sailing close to the wind in light air. Code Zero was initially an attempt to circumvent a rating rule by making a large genoa for close reaching on boats that were measured with non-overlapping genoas. The Code Zero got around the rule by measuring in as a very narrow-flat spinnaker with shape similar to a reaching genoa. Cruising sailors have a lot more options on the size and shape of a "code" sail.

The code zero is very flat and is designed for close reaching. It has a nearly straight luff, a mid girth about 60-65% of the sail's foot length. This sail is closer in shape to a traditional drifter than a spinnaker.

Cruising Code Zero (left) and a Cruising Spinnaker (right). The Code Zero is a much flatter "triangular" shaped sail that is designed for close reaching. The Cruising Spinnaker is bigger and rounder and designed for broad reaching.

The Code zero runs wind angles from 50-110 degrees.

The Code D is a cruising spinnaker with a nearly straight luff that furls from the bottom up, just like a genoa. ... Most Sailmakers has succeeded in developing an asymmetrical spinnaker that performs well from 80-degrees apparent wind angle to nearly dead downwind. With a regular, continuous line furler, it’s easier to use than a Stasher system and less expensive than top-down furlers. The Code D gets its name because its shape, a straight luff and round leech, makes it look like the letter "D."

It’s polar range is wide and can sail from 60 degrees to 140 degrees. If you have a spinnaker pole on the down-wind clew it can be pushed out to accommodate full dead down-wind angles of 180 degrees.

The comparison

-Upwind to apparent wind of 50 degrees

-Reaching to apparent wind of 110

-Apparent wind speed: 1-16 knots

-Approximately 60% of the sail area of a full-size spinnaker and about twice the size of a non-overlapping genoa.

-Upwind to apparent wind of 60 degrees

-Reaching to apparent wind of 140 degrees

-Apparent wind speeds: 1-16 knots

- Approximately 70% of the sail area of a full-size symmetrical spinnaker

After reviewing all the details we have decided to order a Code D and will let you know next year what we think. Note that on our J30 in Canada we have a APR 70 Asymmetrical Spinnaker in addition to a full Symmetrical spinnaker.

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> > Please support our sponsors and let them know you heard about their products on Cruisers Forums. 29-07-2016, 07:16   Boat: Lagoon, 52 52 (Summer Kai) and we are in the process of outfitting her. Our goal with the is to the for a year or so and then, who knows... We are trying to decide what type of sail (Screecher, Code 0, parasailor or Spinnaker) we should next. The sail loft is recommending a Code 0 because of its light air capability. We already have the and the bow sprit so that's not an issue. For reference, we will be sailing short handed (wife & two young children). Any or thoughts would be quite welcome. thanks Laguna Red s/v Summer Kai 29-07-2016, 08:32   Boat: Hylas 49 and is more for downwind sailing. 29-07-2016, 08:47   Boat: Currently Shopping, & Heavily in LUST! ranges, & angles do you want to use it in. There's an example of drawing up a grid of what are flown in specific wind ranges & angles at Beth & Evans's website, here And even the pro's use such , as it make it stupid simple to know what to hoistfly, & when. As well as to identify holes in one's quiver. Edit: There's also some stuff on sail choices & wind strengths here You'll also need to consider what you want to use wise. In terms of furlers, systems (2:1 for Code 0's, or 1:1 on A-Sails). As well as type, & where the tack will be attached, as luff loads on Code 0's aren't small by any means. Also, when you're pondering furlers, there's the furlers vs. sock question which needs addressing. Look over the info on the & carefully, as all have issues. Such as it's not uncommon to have hiccups a so that it's not a tight furl, which makes it hard to unfurl it easily later. And even when furled properly, it's unwise to leave them hoisted like you do with a . I've covered all of the above in great , as well as some other significant questions that bear looking into, to make a more fully informed decision on sail type, & setup. Much of it is in the below linked post, but also do a search under Code 0 & you'll find a bunch of stuff which I wrote on Code 0's, A-Sails (spin's), & Screechers. Plus an exhaustive questionaire on Code 0's, their hardware, plus other types of Spin/Code 0 gear. And a kind gent in the Class 40 fleet answered the vast bulk of the huge number of questions that I posed. I'd cut & paste you the addy's to the posts which I'm alluding, but I don't have the links handy. But the info's here on the if you're so inclined. Here's one Good luck! PS: When you're considering Code 0's make sure that you & the are on the same page terminology wise. As a cruising Code 0 & a true Code 0 are quite different beasts. With the latter being a specialized upwind "spinnaker" that's flown quite differently than the cruising version. But there are ways to use one in place of the other, including for downwind . The Uncommon Thing, The Hard Thing, The Important Thing (in Life) Making Promises to Yourself, And 29-07-2016, 09:05   Boat: a sailing boat , as you either upwind (say approaching an anchorage) or else fast beam reaching (or nearly so) between the islands. This is so in the windwards, maybe a bit less so in the leewards. If at all, I would consider an universal light reacher - a sail fuller than a zero and not as deep nor slack in the tack as a G2 is. And the luff 'short'. Our reacher is built in 'heavy' 1.5 oz nylon and has a zero luff and the of about a cruising (except the top, where it is way flatter). We can fly it in 5 to 25 knots (5-15 up / 10-25 down) and it delivers about 20% extra speed. The angles are maybe 60 degrees light upwind to maybe 135/140 degrees max reaching. PS because of the variations in wind out there consider a sail that can be quickly furled away zero style. I will try to find a picture of a similar sail. named G0 here: visible here: And this discussion reflects the idea. "... A “code zero” for cruising doesn’t really fit what implied within . Some sailmakers are branding names (Doyle UPS, etc.) but let’s just call it a cruising (CCZ). A screecher for cruising has the same general characteristics as CCZ, but for multihulls. To simplify here, they’re collectively called CCZ/S...." Have fun! Cheers, b. 29-07-2016, 12:29   Boat: Seawind 1000xl "... A “code zero” for cruising doesn’t really fit what implied within . Some sailmakers are branding names (Doyle UPS, etc.) but let’s just call it a cruising (CCZ). A screecher for cruising has the same general characteristics as CCZ, but for multihulls. To simplify here, they’re collectively called CCZ/S...." Have fun! Cheers, b. 29-07-2016, 13:47   Boat: We have a problem... A serious addiction issue. and the G2-3 for <10kn of breeze only). Personally I would go with the C1. It's a sails a little further off the wind than a 0 but has far less luff load and can reach deep better. One thing I should point out, a true Code has to measure in as a spinnaker, which means the mid girth measurements are all screwie. It forces a strange cut to the sail that no one wants. Ideally a cruising code eliminates that section, and which it may not technically measure in as a spinnaker it's actually a better sail.   29-07-2016, 14:30   Boat: a sailing boat 29-07-2016, 16:54   . The ASI is nice to have, but in truth because I'm usually short handed, it stays stowed more than it should. I've never hoisted it solo (getting it down is the issue), but have with the services of a who can release the tack and ease the sheet under instruction while the AP steers near DDW. If the wind is up, you really need one experienced or two not so experienced additional crew to sock it safely. With experience a husband and wife could do it well in most conditions. IF you are planning on a lot of deep reaching of downwind sailing, it would be good to have as the screecher will not be of much help beyond 140 AWA. In light air, an ASI will sail at 65 AWA using a from the windward bow to the sprint keeping the tack centred and the luff very tight. 30-07-2016, 10:49   Boat: Lagoon 400 is to buy the fullest sail that you can put on the furler you already have. Symmetrics/Parasailors etc. need more involvement and experience notwithstanding whatever the sailmakers will tell you about the ease of using snuffers. 30-07-2016, 11:21   Boat: Leopard 46 catamaran of the world. In the , the old wire luff "reachers" made of nylon, have been replaced with "screachers" or Code 0s. These are large, loose luff sails, set on short bow sprits, typically used with an anti torque luff and furler. In some European countries, these are refered to these as gennakers. Screachers The term "Screacher" was coined in the early days of the racing in South . It was in an attempt to get a reacher classified as a small spinnaker to avoid a handicap hit for an over sized headsail. This didn't last long as committees saw it for what it was. The evolution on the screacher, has produced a low stretch sail that can be used effectively upwind in light air. It will need to be designed to tack to a bow sprit and sheet inside the cap shrouds, trimmed to an inboard position of 10 to 12 degrees off centerline. Screachers work best with low stretch, anti torque luff ropes, and 2 to 1 halyards highly tensioned. Unlike the reachers of the past, these sails must be designed and built to take the considerably loads of high apparent wind angles and speeds while maintaining a flat upwind shape. If used upwind in true winds of 10 kt, it is not unusual to have apparent winds in the 17 + knots range. A properly designed and trimmed screacher can be a real work horse upwind and close reaching in the light breezes. This can greatly reduce motoring time while adding to sailing pleasure. If used on a furler, the furling line can be lead to a position close to the furling line for the jib. It will than be a simple procedure to roll up the jib, and unroll the screacher, as the wind gets light, or reverse this, when the breeze increases. Code 0 For some long reaching or downwind passages, the main, jib, and screacher, may still lack the horse to achieve good speed averages. The solution here is either a Code 0 or an asymmetrical spinnaker. The original Code 0s were designed for the racers, as their flattest spinnaker. These early sails were heavy nylon with wider mid girths. Because of the popularity of this trend, sail cloth manufacturers designed and produced fabrics specifically for Code 0 sails. This Code 0 cloth is a laminated with mylar film on one side, strong warp fibers in the center and a light taffeta on the other side. Heavier versions include Aramid fibers in the warp for added strength. The end product is a light, low stretch, with a "soft hand." This can be stuffed in a bag, doused with a sleeve, or used with a furler. We design these, as well as the screachers, with an adjustable , or Vectran "anti torque" luff that furl well on continuous line Code 0 furlers. The Code 0 that we build for multihulls, uses the same attachment points as the spinnaker, the end of the bow sprint, spinnaker , and sheet blocks in the back of the hulls. The foots are longer than the screachers and are trimmed outside the shrouds. With the wider sheeting angles, the highest these sails can be used are about 60 to 70 degrees off the true wind. The additional area, compared to the screacher, creates a powerful reaching sail as well as an easy to use downwind sail. These Code 0 sails are designed with the forward and flat leech like a large gena. This creates good top end speeds for the reaches producing more per square foot than the asymmetrical spinnakers. If made with the laminate Code 0 cloths or light dacron, these sails can have a light weight UV strip, allowing them to be left furled on the bow sprits for lengths of time. 30-07-2016, 11:44   Boat: TPI Lagoon 42 30-07-2016, 13:56   Boat: a sailing boat 30-07-2016, 14:55   Boat: Seawind 1000xl 30-07-2016, 14:57   Boat: Seawind 1000xl 30-07-2016, 15:12   Boat: Lagoon, 52 a little less. We've been up on the Chesapeake this summer and we're that the iron horse gets used a lot more than I would like. Once again. Appreciate all of the great feedback. Thread Tools Rate This Thread : Posting Rules post new threads post replies post attachments edit your posts is are code is are are are Similar Threads Thread Thread Starter Forum Replies Last Post esarratt Multihull Sailboats 47 10-06-2020 05:37 Lavezzi 40: Cruisin Cat Fountaine Pajot 13 01-01-2015 22:24 eightyape OpenCPN 7 27-10-2012 16:20 dpopo Powered Boats 6 10-08-2012 03:59 casual Monohull Sailboats 1 11-11-2011 10:45 - - - - - - - Privacy Guaranteed - your email is never shared with anyone, opt out any time. Catamaran Screecher / Code 0 Code 0 / screecher, code 0 specifications, code 0/screecher design process. Catamaran type Code 0's are called Screechers and specially made for catamarans. Screechers are designed a little more flat than a code 0, due to the design of the Catamaran and their sails. Fareast sails Screechers are fully customized with your sailing style in mind. Screechers are radial cut for optimal performance. Each sail is assembled in an organized data sheet for you. You will then be able to review the chart and make changes. Once you approve the chart, we draw each sail and we provide you CAD drawing of your sail(s). You can again review and make changes. Once you approve the drawings, we cut your sail. The process is quite easy. Screecher Design Screechers are a hybrid between a spinnaker and genoa, tending more toward the headsail, it generates headsail-type. Screechers are made with premium sail cloth from Challenge, Contender, and dimension-polyant sail cloth for both inshore and/or offshore applications. Our Screechers Designs provide an excellent all-around performance sail. Screechers designs consist of both nylon and laminate cloths. Depending upon the fabric and boat design, the Screechers can be carried from as close as 45 degrees apparent wind angle (AWA), to as wide as 75 to 110 degrees. Mid girth measurement 60-65% of the foot Screechers can be also Optimized to 60 - 140 degrees apparent wind angle (AWA), Approximately 70-75% of the sail area of a full-size spinnaker. Mid girth measurement 75-85% of foot length. Our Screechers are CAD drawn and presented to you before production Screechers come with 4 color option standard (certain cloths have limited color choice) Every Code are designed with 3 step zig stitched (triple stitching) standard Options Include: Piston Hanks, Numbers, Torque Rope, and Colored logo designs Blue water finish for ocean passages   Sails are full radial Design Standard Screechers can be designed for top down furler with Vectran or Polyester Torque Ropes built into the luff Code 0 Cloth Body Challenge Sail Cloth: Fibermax (.75 oz and 1.5oz) , Elite Racing Nylon Contender Sail Cloth: Maxlite (1.5oz), Nylite (.90oz), Superlite, Superkote, Stormlite, Maxikot Dimension-Polyant – CZ Sliver, CZ GP, CZ White Get In Touch Request a quote for your sails or simply get in touch with the Far East Sails team. images of this ship Description Designed by the famous naval architect Jean-Jacques Coste, Cartouche is a custom built 95' sailing catamaran - one of the largest charter catamarans in the world - a spacious vessel that embodies luxury cruising. In addition to this timeless elegance the Blue Coast 95' offers superior comfort and premium performance combining modern styling with elegant aerodynamic lines, which are seamlessly integrated into the vessel's voluminous interior. This super yacht is built for ease of handling and fast cruising with a minimal need for crew, equipped with a fully automatic furling boom allowing safe and easy sail reduction. Her sporty appeal and comfort at sea provide an idyllic means of enjoying the thrills of luxury sailing with all the high-end amenities of an exceptional cruising vessel. Accommodation Cartouche is accommodating up to 8 guests in 4 ensuite cabins: All 4 size beds are 190 - 160. Large deck level to King master cabin with Ipad control AV and TV. 3 Queen size beds in guest cabins. Twin sinks, full size showers and dressing area. Queen size beds in guest cabins Specifications BBQ onboard: Cruise Speed (knots) : Jean-Jacque Coste Tender Rib-eye 500 (2017) Consumption Units: Twin 425 Cummins - Generators Twin 17 KW x2 Fishing Gear: Snorkle onboard: Onboard WIFI Kiteboarding: Yacht Range: Sea Scooter: Paddle Boards: Wake Board: Wind Surfing: Water skiing: Scuba onboard: Ready to set sail? Summer Areas Greece, W. Med -Riviera/Cors/Sard., Mediterranean & EU Winter Areas Bahamas, W. Med -Riviera/Cors/Sard., Caribbean Leewards, Caribbean Windwards, Caribbean Weekly Rate from: View more... > Service Excellence Total Flexibility Captain Owned Lizette Cabeza Let's set sail! Ready to start your journey on a Luxury Yacht Vacation? Check availability and arrange your itinerary with us today: .NET 8.0 Update - August 13, 2024 (KB5042132) NET 8.0 has been refreshed with the latest update as of August 13, 2024. This update contains both security and non-security fixes. See the  release notes  for details on updated packages. .NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove the previous 8.0 update upon successful installation. For example, when .NET 8.0.8 is installed .NET 8.0.7 version will be removed from the computer if present.  How to obtain and install the update This update is available on Microsoft Update for Windows client operating systems and available on WSUS and  MU Catalog  for Windows Server operating systems. Prerequisites This update will be offered if you have .NET 8.0 installed on a  supported version of Windows . Restart Requirement You may need to restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET based applications before you apply this update. Supported Windows Versions This page on  .NET 8.0 Supported Windows Versions  provides the most up-to-date details on the supported operating system versions. .NET Support Lifecycle This page on  .NET Core and .NET 8 Support Policy  provides the most up-to-date details on .NET Core Support Lifecycle Policy. How to obtain help and support for this update Microsoft support. For assisted support with .NET Core technologies,  contact a Microsoft Support Professional . You need to be on a supported servicing level (the latest available servicing update) to be eligible for support. Community Support Community support is another great way to get help and even contribute to projects. See our  Community page  for details. More Information To get the latest .NET update, go to the  Download .NET  website Need more help? Want more options. Explore subscription benefits, browse training courses, learn how to secure your device, and more. Microsoft 365 subscription benefits Microsoft 365 training Microsoft security Accessibility center Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge. Ask the Microsoft Community Microsoft Tech Community Windows Insiders Microsoft 365 Insiders Was this information helpful? Thank you for your feedback. Login / Sign Up Genshin Impact guides Genshin Impact version 5.0 livestream codes Use these codes for easy Primogems by Julia Lee Hoyoverse just wrapped up the Genshin Impact version 5.0 preview livestream, showing off all sorts of details about the upcoming patch. Most importantly, there were several codes that award Primogems and other rewards shown during the stream. Our Genshin Impact 5.0 livestream code list provides you with the three stream codes for rewards and explains how to redeem them. The livestream showed off the upcoming region of Natlan. We’ve already gotten a glimpse at a ton of the characters before, but this stream showed us a hands-on with Kachina (Geo), Kinich (Dendro), and Mualani (Hydro), who will all be coming in the 5.0 patch. It also previewed a ton of the upcoming events, including one that allows you to pick a standard five-star character of your choice for free. The codes are as follows: 2SMTYV59TLFD 7SMTGV59BLXH 8T4TGDLRA5E5 You’ll want to redeem these codes quickly, as they expire on Aug. 17 at 12 a.m. EDT . They not only reward Primogems, but they also give Mora and Adventurer’s EXP to level up your characters. How to redeem Genshin Impact gift codes To redeem codes, you can log in and input them on the code redemption website . You can also input them in-game through the settings menu, but copy and pasting them in a browser is much easier. You can also click the links above, if you’re logged in on whatever device you’re seeing this post on. Once you redeem the codes, you’ll get the rewards via in-game mail shortly after that. PlayStation Most Popular Black Myth: Wukong is an epic saga that’s both confounding and spectacular to behold Why did the ending of The Umbrella Academy suck so much? Humble’s latest games bundle is a trip through CRPG history Wolverine’s live-action mask had to contend with VFX and the fandom Fateforge: Chronicles of Kaan is an explosive app-driven fantasy board game Patch Notes The best of Polygon in your inbox, every Friday. This is the title for the native ad More in Genshin Impact guides The Latest ⚡️ Get notified in your email when a new post is published to this blog Teams Toolkit for Visual Studio Code update – August 2024 August 15th, 2024 0 1 We’re excited to bring you the latest updates for the Teams Toolkit for Visual Studio Code! In this release, we’ve focused on enhancing the app development experience by adding new features, improving existing functionalities, and fixing known issues. Let’s dive into what’s new in August 2024. Enhanced App Validation Developers can now evaluate their app packages against the same test cases Microsoft uses to review apps. The new Enhanced App Validation feature in Teams Toolkit identifies errors or warnings in your app package and offers guidelines for resolution. This feature ensures your app meets the necessary standards before submission. For more details, refer to the Teams Store validation guidelines and Commercial marketplace certification policies . Generate an Intelligent Chatbot with Python During Build 2024, we introduced support for building Custom Engine Copilot , including a “chat with” feature for your own API. Now, we’re thrilled to extend this capability to Python developers. With Teams Toolkit, you can now generate intelligent chatbots using Python, expanding your toolkit for building powerful, AI-driven applications. Create Declarative Copilots You can now use Teams Toolkit to create declarative copilots, allowing you to craft custom copilots by declaring instructions, actions, and knowledge to tailor Copilot for Microsoft 365. These declarative copilots operate on the same orchestrator, foundation models, and trusted AI services that power Microsoft Copilot. Learn more about Declarative Copilot here . Teams Toolkit enables you to build either a basic declarative copilot or one with an API plugin. Using Assistant API on Azure OpenAI Service Teams Toolkit has updated the AI Agent (Python) app template to support the Assistant API on Azure OpenAI Service. Now, you can build your own AI Agents for Microsoft 365 using Python, with the option to choose between Azure OpenAI Service or directly using OpenAI. An update for the TypeScript and JavaScript versions will be coming soon. Enhancements PR#12063 : Updated Basic Bot and Message Extension PR#12096 : Updated Chat Command PR#12123 : Updated Chat Notification Messages PR#12119 : Updated Sequential Workflow in Chat Teams Toolkit will now inform users to generate an API key before debugging the API Message Extension (ME) or API Plugin with API Key authentication templates. Secret values have been redacted from the Visual Studio Code output channel to enhance security. Fixed vulnerability issues in TeamsFx SDK. #11973 Fixed an issue with groupchat and groupChat compatibility in Teams app manifest. #12028 Resolved an issue where the link redirection for the lifecycle button Provision was incorrect. #12120 Addressed an issue with publicClientApplication initialization failure in TeamsFx SDK. #12159 Fixed an issue when creating SharePoint Framework-based tab apps. #12173 Download the latest version of Teams Toolkit and explore these new features and improvements today. Follow us on X (Twitter) / @Microsoft365Dev , LinkedIn , and subscribe to our YouTube channel to stay up to date on the latest developer news and announcements. Junjie Li Product Manager Leave a comment Cancel reply Log in to start the discussion. Insert/edit link Enter the destination URL Or link to existing content Helldivers 2 Dragon’s Dogma 2 Wuthering Waves Genshin Impact Counter Strike 2 Honkai Star Rail Lego Fortnite Stardew Valley NYT Strands NYT Connections Apple Watch Crunchyroll Prime Video Jujutsu Kaisen Demon Slayer Chainsaw Man Solo Leveling Beebom Gadgets Genshin Impact 5.0 Livestream Codes: Redeem Free 300 Primogems The Genshin Impact 4.8 Livestream is scheduled for August 16, at 12:00 AM (UTC-4). The Livestream waiting room will open 15 minutes early. The Livestream will give out three redeem codes worth 300 Primogems. To redeem the codes, visit the redeem website > login > set the correct server > enter the code and redeem it. Genshin Impact 5.0 Livestream Codes 2SMTYV59TLFD – 100 Primogems and 10 Mystic Enhancement Ore 7SMTGV59BLXH – 100 Primogems and 5 Hero’s Wit 8T4TGDLRA5E5 – 100 Primogems and 50,000 Mora How to Redeem Genshin Impact Codes Redeem codes from the website: Visit here > login to your account > select the correct server > enter the code and redeem it. Redeem codes in-game: Open the main game menu > select Settings > select Accounts > choose Redeem > enter the code and redeem it. Everything New in Genshin Impact 5.0 Two new 5-star characters: Mualani and Kinich . One new 4-star character: Kachina A new region to explore: Pyro Nation Natlan Map New chapter for the Archon Quest Many new events with tons of rewards. Multiple new weapons and artifacts added to the roster. Sanmay Chakrabarti An old soul who loves CRPGs and Souls-Like to death. Takes pleasure in simplifying "Complex and Hard" games for casual players with tailored guides and videos. He loves to explore new places, read fantasy fiction, watch anime, and create wacky character builds in his off time. Add new comment Advertisement Trump Cancels a Debate With Harris on ABC News and Pitches One With Fox News Instead Mr. Trump said in a social media post that the previously scheduled presidential debate to be hosted by ABC News was “terminated” once President Biden dropped out of the race. Share full article By Neil Vigdor Maggie Haberman and Simon J. Levien Published Aug. 3, 2024 Updated Aug. 9, 2024 Former President Donald J. Trump declared late on Friday that he was dropping out of an ABC News debate scheduled for Sept. 10 and presented a counterproposal to Vice President Kamala Harris, his presumptive opponent, to face off on Fox News six days earlier. The change, which Mr. Trump announced on his social media site, Truth Social, raised objections from the Harris campaign and appeared to throw a potential showdown between the rivals into question. A campaign official for Ms. Harris on Saturday accused Mr. Trump of scheming up the Fox News debate to distract from reneging on his commitment to the ABC debate. Mr. Trump had agreed to that debate in May, before President Biden dropped out of the race and before Mr. Biden’s calamitous performance in a CNN debate on June 27. “Donald Trump is running scared and trying to back out of the debate he already agreed to and running straight to Fox News to bail him out,” Michael Tyler, the communications director for the Harris campaign, said in a statement. “He needs to stop playing games and show up to the debate he already committed to on Sept 10.” Mr. Tyler said that the Harris campaign was open to discussing further debates if Mr. Trump honored his commitment to the ABC debate. “Mr. Anytime, Anywhere, Anyplace should have no problem with that unless he’s too scared to show up on the 10th,” he said. A spokesman for ABC News would not say whether the network would go ahead with its debate and give time only to Ms. Harris. In a post on X on Saturday, Ms. Harris said: “I’ll be there on September 10th, like he agreed to. I hope to see him there.” A spokesman for the Trump campaign did not immediately respond to a request for comment on Saturday. Representatives for Fox News did not respond to questions. Mr. Trump has repeatedly railed against ABC News, which he is suing for defamation, a case that a federal judge in Florida recently allowed to move forward . He has attacked George Stephanopoulos, the host of “This Week” on ABC, who did the first television interview with Mr. Biden after his debate performance. He also turned combative toward Rachel Scott of ABC News during a question-and-answer session on Wednesday at a convention of Black journalists in Chicago. Mr. Trump has appeared to be struggling to find his footing since Mr. Biden left the race, despite the fact that Democrats had been increasingly calling for such a change since the president’s debate performance. He has tested out a series of nicknames against Ms. Harris and has made clear he would rather attack her personally and focus the public discussion on her race — Ms. Harris’s father was born in Jamaica and her mother in India — than attempt to tie her to the Biden administration’s record or her own record as a prosecutor in California. Mr. Trump, who spent nearly 16 months getting nonstop attention since he was first criminally indicted in March 2023, has also struggled to try to inject himself back into the headlines at a moment when Ms. Harris is enjoying a political honeymoon. By canceling the ABC debate, Mr. Trump has put himself back in the news cycle. According to Mr. Trump’s post on his social media site, the Fox News debate would take place on Sept. 4 at a to-be-determined location in Pennsylvania, one of the most consequential battleground states. The network’s anchors Bret Baier and Martha MacCallum would moderate. Mr. Trump said on social media that the Fox News debate would have a live audience; the previous debate between him and Mr. Biden was hosted by CNN in an empty venue. Though both campaigns agreed to the format of the first debate, Mr. Trump had bemoaned the lack of a crowd. He added that the rules would be similar to the CNN debate, though he did not specify which rules. The candidates’ microphones in the June debate were muted when it was not their turn to speak to prevent interruptions. Mr. Trump also said that he was “totally prepared to accept” Ms. Harris as the Democrats’ new candidate. Since her campaign suddenly took shape after Mr. Biden dropped out of the race about two weeks ago, Mr. Trump has characterized her ascendancy as a “coup” within the Democratic Party. In his debate announcement, the former president complained about the shake-up. “I spent Hundreds of Millions of Dollars, Time, and Effort fighting Joe, and when I won the Debate, they threw a new Candidate into the ring,” Mr. Trump said on his social media site on Friday, adding that he hoped to tie Ms. Harris to Mr. Biden’s policies. The Sept. 4 date is close to the start of some states’ early voting windows and long after Ms. Harris has clinched the nomination from her party. (The Democratic National Committee said on Friday that she had already won enough delegates in a virtual roll call vote to secure the party’s nomination.) The first presidential debate between Mr. Biden and Mr. Trump had a seismic impact on the race. Mr. Biden gave a halting performance, in contrast to Mr. Trump, who spoke comparatively vigorously while repeatedly advancing falsehoods. Mr. Biden’s garbled responses supercharged concerns among his Democratic colleagues about his age and health, as well as his ability to beat Mr. Trump in the general election. After several weeks of declining poll numbers and mounting pressure from key allies, Mr. Biden announced on July 21 that he would withdraw from the race. Since then, Ms. Harris has challenged Mr. Trump to debate her and criticized his reluctance to commit to a date. As recently as Friday morning, in an interview with Fox Business, he was refusing to say whether he would debate Ms. Harris. After the president dropped out, Ms. Harris said she would be willing to debate in Mr. Biden’s place, but Mr. Trump was noncommittal. “Well Donald, I do hope you’ll reconsider to meet me on the debate stage,” Ms. Harris said at her rally in Atlanta on Tuesday. “Because as the saying goes, ‘If you’ve got something to say, say it to my face.’” Neil Vigdor covers politics for The Times, focusing on voting rights issues and election disinformation. More about Neil Vigdor Maggie Haberman is a senior political correspondent reporting on the 2024 presidential campaign, down ballot races across the country and the investigations into former President Donald J. Trump. More about Maggie Haberman Simon J. Levien is a Times political reporter covering the 2024 elections and a member of the 2024-25 Times Fellowship class, a program for journalists early in their careers. More about Simon J. Levien Keep Up With the 2024 Election The presidential election is 83 days away . Here’s our guide to the run-up to Election Day. Tracking the Polls . The state of the race, according to the latest polling data. Election Calendar. Take a look at key dates and voting deadlines. Swing State Ratings. The presidential race is likely to be decided by these states. Candidates’ Careers. How Trump, Vance, Harris and Walz got here. A Guide to the D.N.C. Here’s what to know about the Democratic convention. 156 IMAGES GC32 Code Zero by 1D Sails GC32 Code Zero by 1D Sails GC32 Code Zero by 1D Sails Freydis 46 catamaran Code 0 sailing QUANTUM CODE 0 GC32 Code Zero by 1D Sails COMMENTS Top Eight Misconceptions About Code Zero Sails Catamarans and trimarans have notoriously small jibs, making them grossly underpowered in light breeze. A screecher is larger, higher clewed, and fuller than a genoa but flatter than a typical code zero. 3. A code zero is strictly a racing sail. Cruisers of all ilks have taken to the sail for its range and ease of use. Step-by-Step Guide: How to Sail a Code Zero on a Catamaran Flying a Code Zero on a cruising catamaran Handling a Code Zero sail on a modern cruising catamaran: This informative and inspiring how-to-video was made by the Australian multihull experts of TMG Yachts, after taking delivery of a new Rolly Tasker Sails Code 0. How to Fly a Code Zero on a Catamaran Since the Code Zero is primarily a downwind sail, tacking is not possible, as the sail is hoisted in front of the forestay, instead you must gybe. For a cruising gybe, start by heading downwind to reduce the apparent wind on the vessel. Ensure the furling line is ready, and as the sail is eased, furl the sail, then prepare to gybe the boat. Cruising Code 0: For All the Angles In Between The Code 0 for cruising monohull sailboats is a full sail, shaped like an asymmetrical spinnaker, and furls easily on a top-down furling system. While the midgirth of the racing Code 0 is restricted to at least 75% of the foot length, the cruising version of the sail has no restrictions, giving the sailmaker a lot of leeway in design. THE TRUTH ABOUT CODE ZERO SAILS ON CATAMARANS We had high hopes for the Code Zero...the sail is an incredibly popular setup on newer boats. The idea of making good time with the sails instead of firing u... Code Zero Sails A Code Zero Laminate will provide both lightweight performance in light air, and durability while crossing the pacific for an offshore catamaran cruiser with a displacement of 15,000 KG. THE LATEST OBSESSION: CODE ZEROS Elevate your sailing with Code Zeros: the ultimate secret weapon for enthusiasts. Unveil the fascination and performance of Code Zeros today. Ullman Sails : Cruising the Code Zero What exactly is a code zero? Officially a code zero is a spinnaker for use in tight-reaching in light air - that's it! The sail tends to be the smallest spinnaker in any sail inventory, whether racing or cruising. Racers have discovered that because of its size and applicable wind strength and angle ranges, the sail has benefits for racing performance while avoiding rating penalties ... Code Zero: The Cruiser's Dream Sail? A Code Zero is tacked ahead of the genoa - either on a sprit or on the anchor's bow roller. Furling sails require high tension to furl effectively, so if the sail sets on a sprit it must be well supported or very robust. Obviously the roller drum must clear the other genoa's furler drum. The head swivel attaches to the spinnaker halyard. Code 0, the light and powerful sail for sailing close to the wind The Code 0 is a kind of large, very light genoa that can be sent in the manner of an asymmetrical spinnaker or as a gennaker. This sail allows to tighten the wind in very light winds. With blocked materials such as laminated fibres and a fairly flat design you will almost be able to sail upwind. On the other hand, a slightly flexible fabric and ... Quantum Cruising Code 0: For All the Angles In Between The Quantum Code 0 for cruising monohull sailboats is a full sail, shaped like an asymmetrical spinnaker, and furls easily on a top-down furling system. While the midgirth of the racing Code 0 is restricted to at least 75% of the foot length, the cruising version of the sail has no restrictions, giving the sailmaker a lot of leeway in design. Light Wind Sailing Skills: Code 0 What does "Code 0" mean? Well, first of all the Code 0 is used in wind speeds of below 8 knots true, some ride it in winds with with max 10 knots. The Code 0 is a sail that is best utilized in 45 to max 90 degrees AWA and is considered the lightwind-upwind sail. For wind angles greater than 90 degrees, a Gennaker is the sail of choice. Best Sails for Offshore Cruising: Understanding Code Zeros and AWA Code Zeros and AWA apparent wind angel reaching sails are part of a cruiser's offshore sail locker. Changes in sail inventory on the foredeck. 8 Common Misconceptions about Code Zeros The Code 0 is a downwind sail used only in racing, right? Not true! Bust the most common misconceptions about Code Zeros and consider one for your boat! Cruising Code Zero Cruising Downwind Sails: Cruising Code Zero Shown above is a Berckemeyer 45 with a Cruising Code Zero (left) and a Cruising Spinnaker (right). Notice how the Code Zero is a much flatter "triangular" shaped sail that is designed for close reaching. The Cruising Spinnaker is bigger and rounder and designed for broad-reaching. Photos courtesy Berckemeyer Yacht Design. Choosing a Code 0 or Gennaker Furler How do I choose the right code zero or gennaker furling unit for my boat? Data from eight well-known manufacturers is reviewed and conclusions drawn to help guide you to an appropriate unit for your needs. What type of Asymmetrical Spinnaker? Code Zero vs Code D. The Code Zero is a much flatter "triangular" shaped sail that is designed for close reaching. The Cruising Spinnaker is bigger and rounder and designed for broad reaching. The Code zero runs wind angles from 50-110 degrees. The Code D. The Code D is a cruising spinnaker with a nearly straight luff that furls from the bottom up, just like a ... Cruising Code 0 Sails Code 0 Design Code 0's are a hybrid between a spinnaker and genoa, tending more toward the headsail, it generates headsail-type. Our Code 0's are made with premium sail cloth from Challenge, Contender, and dimension-polyant sail cloth for both inshore and/or offshore applications. Code 0 Furling Join Date: Mar 2013. Location: San Diego. Boat: Jeanneau 349, FP 47, Sense 50, J 42ds. Posts: 752. Code 0 Furling. I've decided to go with a Code 0 on my new 47 catamaran. I'm looking for the right furler. The sail will be about 1100 square feet, made of lightweight composite with a UV stripe so I can leave it up for several days at a time. Screecher vs. Code 0- Help Deciding Re: Screecher vs. Code 0- Help Deciding. The first question to answer is what do you want to use it for in terms of making your sail inventory more well rounded. More specifically, what wind ranges, & wind angles do you want to use it in. There's an example of drawing up a grid of what sails are flown in specific wind ranges & angles at Beth ... Catamarans Browse our selection of Catamarans Experience the seas the Code Zero way. With over 3000+ yachts available for any destination in the world, design your ultimate sailing vacation and explore the world on your terms. Showing 0 results Sort by Catamaran Screecher / Code 0 Code 0/Screecher Design Process Catamaran type Code 0's are called Screechers and specially made for catamarans. Screechers are designed a little more flat than a code 0, due to the design of the Catamaran and their sails. Fareast sails Screechers are fully customized with your sailing style in mind. Screechers are radial cut for optimal ... CARTOUCHE Description Designed by the famous naval architect Jean-Jacques Coste, Cartouche is a custom built 95' sailing catamaran - one of the largest charter catamarans in the world - a spacious vessel that embodies luxury cruising. In addition to this timeless elegance the Blue Coast 95' offers superior comfort and premium performance combining modern styling with elegant aerodynamic lines, which are ... .NET 8.0 Update NET 8.0 has been refreshed with the latest update as of August 13, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages..NET 8.0 servicing updates are upgrades. Genshin Impact codes from the version 5.0 livestream There are three codes to use after the Genshin Impact patch 5.0 livestream to get free in-game loot like Primogems. Our guide lists them out. Teams Toolkit for Visual Studio Code update Learn about the latest Teams Toolkit for Visual Studio Code updates including the capability to create declarative copilots. Genshin Impact 5.0 Livestream Codes: Redeem Free 300 Primogems The Genshin Impact 4.8 Livestream is scheduled for August 16, at 12:00 AM (UTC-4). Here are Genshin Impact 5.0 livestream codes. Trump Cancels a Debate With Harris on ABC News and Pitches One With Fox Mr. Trump said in a social media post that the previously scheduled presidential debate to be hosted by ABC News was "terminated" once President Biden dropped out of the race. gulet motorboat powerboat riverboat sailboat trimaran yacht