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catamaran vs trimaran speed

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Independence class frigate LCS Littoral Combat Ship

  • 19 May, 2024 - 16:29

The Independence class of littoral combat ships (LCS) is General Dynamics and Austal's design proposal to the US Navy's requirement for the LCS class ships. The LCS concept emphasizes speed and modularity thanks to its flexible mission module spaces. According to US Navy, the LCS is "envisioned to be a networked, agile, stealthy surface combatant capable of defeating anti-access and asymmetric threats in the littorals."

The Independence class of littoral combat ships (LCS) is General Dynamics and Austal's design proposal to the US Navy's requirement for the LCS class ships. The LCS concept emphasizes speed and modularity thanks to its flexible mission module spaces. According to US Navy, the LCS is "envisioned to be a networked, agile, stealthy surface combatant capable of defeating anti-access and asymmetric threats in the littorals." The hull design evolved from a project at Austal to design a 40 knot cruise ship. That hull design evolved into the high-speed trimaran ferry Benchijigua Express. The principal requirements of that project were speed, stability and passenger comfort and Austal's team determined that the trimaran hull form offered significant passenger comfort and stability advantages over both catamaran and monohull designs. General Dynamics and Austal's Littoral Combat Ship trimaran hull vastly improves performance on a wide range of sea conditions enabling extended warfighting availability to the U.S. Navy. The slender center hull and two smaller side hulls gives the smaller ship the operational characteristics of a larger craft providing greater stability in rough seas and combat conditions. Further improving performance, the aluminum structure and selective use of steel provides huge advantages of stability and buoyancy, improved damage protection, reduced magnetic signature (quieter operations) and significant increases in the ship's usable interior space compared to a monohull design. The General Dynamics LCS has the endurance to travel 4,300 miles and 18 knots. The Independence class LCS design has the performance to bring more warfighting capability to the mission front. Modular launch systems and an extended flight deck provide maximum flexibility and enable rapid deployment of UAV, sensors and mission personnel. The LCS-2 design solution has the speed and capacity to traverse the changing seas of today's asymmetric threats:

  • Wider operation envelope (sea keeping, speed, endurance, stability)
  • Concurrent helicopter and UAV operations
  • Quick mission module change
  • Capacity for any two mission packages simultaneously
  • Three weapon zones

The head of class, USS Independence (LCS-2) was laid down in January 2006 and commissioned four years later. Second ship of the Freedom class, USS Coronado (LCS-4) was laid down in December 2009. In total, ten Independence class LCS are to be built until 2015.

General Dynamics Multi-Mission Combatant : Export variant with optional Missile Vertical Launch System (up to 32 silos), Anti-ship missiles, Torpedo tubes, custom systems depending on customer requirements. {gallery}north_america/usa/frigates/independence_lcs/pictures_mmc{/gallery}

catamaran vs trimaran speed

  • Anti-ship missiles: 3x weapons modules
  • Anti-air missiles: 1x Raytheon SeaRAM system (11x RIM-116 Rolling Airframe Missiles)
  • Guns: BAE Systems Mk 110 57 mm (main gun) 2x Mk44 Bushmaster II 30mm guns 4x .50-cal machine guns
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  • ITT Corporation ES-3601 ESM system

The Independence class of littoral combat ships (LCS) is General Dynamics and Austal's design proposal to the US Navy's requirement for the LCS class ships. The LCS concept emphasizes speed and modularity thanks to its flexible mission module spaces. According to US Navy, the LCS is "envisioned to be a networked, agile, stealthy surface combatant capable of defeating anti-access and asymmetric threats in the littorals."

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catamaran vs trimaran speed

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Thinking about buying an electric or hybrid blue-water cruiser?

catamaran vs trimaran speed

The question of how to adjust our daily lifestyles to be as sustainable as possible is now a major concern for those of us who live on land, but also at sea. We are becoming increasingly aware of the relationship between our energy consumption and environmental problems. Air pollution, climate change, water pollution, thermal pollution, and solid waste disposal are all directly related to the production and consumption of fossil fuels.

It is no surprise therefore, that yacht owners too are questioning their impact on the environment, and raising the very pragmatic question: to go electric, or not?

Electric engines vs. combustion engines can be a hard topic to navigate in the context of hybrid catamarans. Electric engines are being heralded as THE solution for reducing our CO2 emissions. But there are a lot of questions: Is the technology advanced enough to be a reliable option for blue water sailing boats? Is this the most sustainable solution? Or is there an element of greenwashing going on by boat manufacturers who are trying to appear ‘climate-friendly’?

At Outremer, we understand the need for an objective perspective in this debate on sustainable yachting. Our expertise in marine engineering, our close relationship with our customers and their feedback, and three years piloting the zero-emission model ‘4-zero’ , enables us to offer you this balanced perspective on hybrid catamaran solutions.

Enjoying the Dream of a Fully Electric Boat

The idyllic vision.

Picture yourself living your dream. You are on your green fully electric, emission-free sailing boat basking in paradise. The sun is just dropping below the horizon. You are gently swinging on anchor, dinner is cooking, and you are enjoying a cold drink after a refreshing swim and a warm shower. The spot you chose was perfect – idyllic, sheltered, and not another boat in sight. Yesterday, you set sail for a 200-mile passage – fridge stocked and water tanks full. After slipping the lines and hoisting the sails – thank goodness for the electric winches – you turned the engine off and breathed a sigh of relief; that moment is the best when it’s just you, the waves, and the wind. For the rest of the day and night, the autopilot did the rest of the work, obediently following the route you set in the chart plotter. Apart from some fine-tuning, all that was left to do was relax and enjoy that wondrous feeling of traveling entirely with nature. 24 hours later, under the warm fiery glow of the setting sun – truly – you feel recharged. The boat’s batteries, on the other hand…

Energy Consumption Breakdown

In 24 hours, typically a 45-foot Outremer will need about 10kWh of electricity. That breaks down to:

3.5 kWh for the critical sailing electronics

4 kWh for other domestic appliances like a fridge, freezer, electric winches, and interior lighting

1 kWh for heating 40 liters of hot water, enough for four people to shower and wash up frugally

2 kWh for cooking two meals with an induction hob, boiling a kettle via an inverter, or making 150 liters of water with the watermaker; possibly running the dishwasher or washing machine.

Practical Considerations

NB: While this data comes from real-life experience, everyone’s power requirements, generation, and storage are unique. These figures may not directly relate to you, but we encourage you to take a pragmatic view of the power you will use and the power you can produce and compare them as we have here.

The Possibility of Renewable Energy

The good news is that if you have a fully electric boat, it is theoretically possible to generate enough renewable energy to cover your daily needs. On a sunny day, solar panels on your davits and the coach roof will just about generate the 10kWh needed. If it is cloudy, your average speed of 8 knots might produce 4 or 5 kWh – which wouldn’t be enough for all the comforts, but you could still run your electronic systems and the fridge.

The Challenges of Light Winds and Cloudy Days

The bad news is that if you have an electric boat and find yourself in light winds on a cloudy day, power generation gets tricky. For coastal cruisers, this can be overcome by planning trips around marinas and shore power plug-ins to top up. But for blue-water sailors, this is too much of a risk. Power on board a yacht is needed for critical life support systems at sea such as creating water, propulsion in an emergency, or running electronic equipment like GPS and a VHF radio. As blue-water sailors know all too well, nature and the weather are notoriously unpredictable. To rely on any type of consistency with wind or sun would be foolish.

Safety Concerns

So, for now, a fully electric boat is impractical and unsafe unless you are prepared to simplify your systems onboard down to the bare minimum: no fridge, no water maker, and very basic electronics. And even then … is it feasible?

catamaran vs trimaran speed

Hybrid Catamarans: Benefits and Challenges

The hybrid alternative.

The now frequently used ‘safer option’ for alternative to a fully electric boat is a hybrid. On first look, this appears to solve the risk of running out of power onboard a boat with electric propulsion. However, this is not a sensical option. Adding a diesel operated generator to a boat with electric propulsion leaves you with the worst of both worlds.

The Clean Energy Dilemma

One benefit of an electrically powered boat is that it uses clean, renewable energy. Put on a diesel-powered generator and you might as well just put the diesel engines back on because you are still reliant on fossil fuels. Another benefit of an electric propulsion system is that it is quiet and clean. But once you run the generator you negate that benefit: the generator is noisy and needs a smelly exhaust just as an engine does.

Weight Considerations

A much-celebrated advantage of electric propulsion is that it is much lighter weight than a diesel engine, especially when you bear in mind the weight of the fuel itself. However, once you combine the weight of the two electric engines, sail drives, extra batteries required, and then also the generator and the fuel that needs to be stored, the resultant weight is within 100kg of the weight of the two diesel engines and their fuel. That’s barely the weight of an average crew member and their luggage.

Real-World Testing: The 4-Zero Model

That’s the theory – but what about the reality? The Outremer shipyard has been offering the ‘4-zero’ – a ‘zero-emission’ fully electric boat – for the past three years. It’s first prototype was created for Jimmy Cornell’s ‘Elcano Challenge’ which aimed to follow the footsteps of Magellan on a 33,000 mile journey around the globe in total carbon neutrality. The first part of Jimmy’s expedition took him 1000 NM or so from La Grande Motte to the Canary Islands and allowed him to better understand the constraints that modern day sailors face if they wish to sail fully electric.

Cost and Performance Challenges

That began with the boat’s cost which was 30-50% higher than an equivalent boat equipped with diesel engines. The most significant takeaway from this voyage was the power required for propulsion relative to sea state. Whilst in a flat sea and no wind, 4-5KwH were needed to propel the catamaran. But as soon as the wind picked up, the power needed to propel the yacht increased exponentially. By the time they were motoring into 25 knot headwinds and their associated chop, the power necessary to move the streamlined hulls of the Outremer increased to 25kWH. That’s still more than the solar panels and hydroprop could produce on a day with full sunlight whilst sailing at 10 knots.

The Path to Sustainable Sailing

It is clear now that Outremer, nor anyone in the boating industry, has yet solved the task of providing a truly energy autonomous solution for blue water sailors. What is clear, is that if we are to adopt green energy solutions, we must change our behaviour. We must go back in time: limiting our power consumption to basic equipment, resigning ourself to unpredictable schedules, giving up going upwind in harsh conditions, and adjusting the route plan to optimise power generation.

Balancing Sustainability and Safety

But none of these solutions solve the issue of safety, which is the most important thing of all both for yacht owner and shipyards: in the case of breakdown, medical emergency or unexpected bad weather are we ready to rely solely on an electric or hybrid engine? We’d say not.

The Future of Green Sailing

Each generation of sailor has their own experiences, values, and visionary ideas. We are committed to finding a solution here that does not rely on fossil fuels. So we invite you to discuss this topic further: how to be green AND be blue-water safe.

Continue navigation

catamaran vs trimaran speed

Setting off on a catamaran with the best sailing weather

When you’re getting ready to set off on a sailing trip, it’s vital to find out about the seasons and weather phenomena in your chosen sailing area. Even before choosing your cruising destination or travel itinerary, or even selecting your yacht!

catamaran vs trimaran speed

Catamaran VS Monohull: what should you choose to sail around the world?

Sailing around the world is a dream come true: you discover the world to the rhythm of the wind and the stopovers, exploring new destinations every day as you sail. If you’re just starting to read this article, you’re probably nurturing this project. Are you planning to sail around the globe? Then the choice of ship for your next voyage is crucial.

catamaran vs trimaran speed

The Importance of Defining Success

In the Autumn of 2023, I ran a ‘Webinars for Women’ mini-series on transatlantic preparations. The first session was titled: “How to approach transatlantic preparation.” As I zoomed out of the nitty gritty of canned food recipes, spare parts inventories, and preventative sail repair and took a broader look at the framework for a successful crossing, I homed in on what I think the first and most important step is: defining your goal.

catamaran vs trimaran speed

there are many boats that are parked in the grass

Jim Brown Trimaran Plans

rosieyatchcom

IMAGES

  1. Catamaran vs Trimaran: Which is Better for You?

    catamaran vs trimaran speed

  2. Catamaran vs. Trimaran: The Differences Explained

    catamaran vs trimaran speed

  3. Catamaran vs Trimaran: Which is Better for You?

    catamaran vs trimaran speed

  4. Catamaran Vs Trimaran

    catamaran vs trimaran speed

  5. Trimarán vs Catamarán

    catamaran vs trimaran speed

  6. Trimaran vs. Catamaran: What are the Differences?

    catamaran vs trimaran speed

VIDEO

  1. Trimaran vs High speed

  2. 16’ Catamaran in Rough Seas! 😱

  3. Catamaran vs Monohull The No Sail Zone #sailing #boat #shorts

  4. Katamaran vs. Trimaran #shorts #katamaran #neel

  5. Standard catamaran VS electric catamaran: what are the differences?

  6. Benchijigua Express

COMMENTS

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    The Spearhead-class expeditionary fast transport (EPF) is a United States Navy-led shipbuilding program to provide a high-speed, shallow draft vessel intended for rapid intra-theater transport of medium-sized cargo payloads. The EPFs can reach speeds of 35-45 knots (65-83 km/h; 40-52 mph), and allow the rapid transit and deployment of conventional or special forces, equipment and supplies.

  2. Catamaran VS Monohull: what should you choose to sail around the world?

    The evolution of catamaran performance . The perception of catamarans has evolved considerably over the last few decades, from boats mainly associated with chartering to multihulls capable of competing with monohulls in terms of performance. In the 1960s and 1970s, catamarans began to appear in regattas, where their speed potential was already ...

  3. Independence class frigate LCS Littoral Combat Ship

    That hull design evolved into the high-speed trimaran ferry Benchijigua Express. The principal requirements of that project were speed, stability and passenger comfort and Austal's team determined that the trimaran hull form offered significant passenger comfort and stability advantages over both catamaran and monohull designs.

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  7. NEEL 43 Performance

    Full test in Multihulls World #196. Create a notification for "Trimaran". TECHNICAL SPECIFICATIONS. Builder: NEEL Trimarans. Architects: Marc Lombard Yacht Design Group. Material: Foam/glass quadriaxial/polyester and vinylester sandwich, PVC carbon bulkheads and carbon reinforcements. Length: 42'4" (12.9 m) Beam: 24'3" (7.4 m) Draft: 4 ...

  8. Hobie Cat

    Hobie Cat is a company that manufactures watercraft and other products as the Hobie Cat Company. "Hobie Cat" can also refer to specific products of the company, notably its sailing catamarans. Its fiberglass catamaran models range in nominal length between 14 feet (4.3 m) and 18 feet (5.5 m).

  9. Hybrid Catamaran: Is It Right for You?

    In 24 hours, typically a 45-foot Outremer will need about 10kWh of electricity. That breaks down to: 3.5 kWh for the critical sailing electronics. 4 kWh for other domestic appliances like a fridge, freezer, electric winches, and interior lighting. 1 kWh for heating 40 liters of hot water, enough for four people to shower and wash up frugally.

  10. Speed sailing record

    Speed sailing records are sanctioned, since 1972, by the World Sailing Speed Record Council (WSSRC). Records are measured either by average speed over a specified distance or by total distance traveled during a specified time interval. The three most sought after records are the: 500 metre (or "outright") record is held by Paul Larsen.

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  12. Jim Brown Trimaran Plans

    Jim's foray into his career as 'trimaran test pilot' is well documented in his entertaining book, 'among the multihulls:. 23' trimaran for the masses plans for sale.. ... The Corsair 37 offers all the comforts of a cruising mono hull and the flat sailing of a big catamaran. It also has the speed, safety and unsinkability of a Corsair Trimaran ...

  13. - Multihulls World

    LEOPARD CATAMARANS; Length 12.98m / 42'7'' $5.00 Inc. tax Purchase the boat test. BOAT TEST Aquila 70 Luxury. Aquila continues to make its own mark on the powercat world. Having taken the lead in the 40-foot market with its incredible 44, the shipyard intends to make a place for itself in the motoryacht ...

  14. Monohull vs. Catamaran? The Perfect Home on the Waves Most of ...

    2-6. Monohull vs. Catamaran? The Perfect Home on the Waves Most of your time is spent anchored, not sailing. So, think beyond sailing performance - consider which type offers the best living experience. For many, the spaciousness of a catamaran makes it a floating dream home! #BluewaterCruising #SailingZatara #SailingHome #LifeAtAnchor # ...

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    Check out the wide selection of CDK trimaran f 40 for sale in your area available for sale in your region, explore the details provided for each boat, compare prices, and discover the most advantageous CDK trimaran f 40 deals. 1986 CDK Trimaran F 40 for sale CDK. France. 1986. 39.99 ft. Used. £59,151. All; New; Used; Commercial only. All ...