speed boat vs catamaran

Catamarans: A Complete Guide to Multihull Boats

Catamarans have been a part of sailing history for centuries and continue to be popular for their stability, spaciousness, and performance. Developed by various cultures around the world, the principles of catamaran design have evolved over time to become optimized for both pleasure cruising and racing. This complete guide will help you understand the essentials of catamarans, their unique characteristics, and how to choose the right one for your needs.

From the basic concepts of multihull design, performance, and handling, we will explore the advantages and benefits of a catamaran in terms of safety and comfort on board.

Along the way, we will discuss maintenance considerations, distinctive catamaran brands and models, and how a catamaran lifestyle can compare to more traditional sailing options .

Finally, we will provide learning resources and frequently asked questions tailored to both seasoned sailors and newcomers to the world of catamarans.

Key Takeaways

Catamarans are known for their stability, spaciousness, and performance
This guide covers aspects like design, handling, safety, and choosing the right catamaran
Resources and frequently asked questions provide additional insights for potential catamaran owners

Understanding Catamarans

Design Characteristics

Catamarans are known for their unique design, which features two parallel hulls connected by a deck. This design provides several advantages over traditional monohull boats, such as stability and speed.

With their wide beam, catamarans have a reduced risk of capsizing and can access shallow waters due to their shallow drafts 1 .

One of the notable aspects of a catamaran is its twin hulls, which offer increased living space and comfort compared to a monohull. Additionally, catamarans are often favored by recreational and competitive sailors for their excellent maneuverability 2 .

The materials used for constructing catamarans range from wood to fiberglass, and even aluminum for high-performance vessels. Aluminum catamarans are known for their strength, lightweight structure, and resistance to corrosion 3 .

Hulls and Construction

The hulls in a catamaran are crucial to its stability and performance. These hulls help distribute the weight evenly across the water surface, minimizing drag and allowing for smoother sailing.

In general, the hulls can be categorized into two types:

Symmetrical Hulls : The hull shape is similar on both sides, which enhances balance and stability in various sailing conditions.
Asymmetrical Hulls : One side of the hull is designed differently than the other, which can be advantageous when sailing upwind.

The construction materials used in building catamaran hulls also play a vital role in the boat's performance and durability. Common materials include:

Fiberglass : A popular choice due to its lightweight, strength, and ease of maintenance.
Wood : Traditional material that offers a classic look, but requires more maintenance than fiberglass or aluminum.
Aluminum : Lightweight and strong, aluminum is an excellent choice for high-performance catamarans 4 .

Multihulls vs Monohulls

There's often a debate between the benefits of multihull boats, such as catamarans or trimarans, and monohull boats. Here are some key differences between the two:

Stability : Due to their wide beam and reduced heeling, catamarans offer improved stability compared to monohulls. This makes them an attractive option for those who want to avoid seasickness or feel more comfortable on the water 5 .
Speed : Multihull boats are known for their speed, which results from their ability to minimize drag and maintain a level sail.
Living Space : Catamarans and other multihulls generally have more living space, as both the hulls and the connecting deck can be utilized for accommodation and storage.
Maneuverability : While monohulls are known for their agility and ability to point close to the wind, catamarans can still offer exceptional maneuverability when properly sailed 6 .

Performance and Handling

Speed and Efficiency

Power catamarans have gained popularity for offering a unique combination of speed, efficiency, and stability. Their dual-hull design allows for less water resistance, which directly translates to higher speeds and better fuel efficiency compared to traditional monohull boats.

In addition, the wide beam provided by the two hulls ensures a stable ride even at higher speeds. This makes power catamarans ideal for cruising, fishing, and watersports ( Boating Beast ).

Sailing Dynamics

When it comes to sailing catamarans , the performance is affected by factors such as keel, rudders, mast, and sails.

Their wide beam and dual-hull design provide inherent stability and reduced heeling effect, making them less likely to capsize compared to monohulls.

I should also note that catamarans have a shallow draft, which gives them the ability to access shallow waters that may be off-limits to other boats ( Navigating the Waters ).

In my experience, the lighter weight of a catamaran and its aerodynamic design can contribute to remarkable sailing performance under different wind conditions.

The larger sail area relative to hull weight allows them to harness more wind power, further enhancing their speed and agility on the water.

Maneuvering and Docking

Maneuvering and docking a power catamaran involves understanding its unique handling characteristics.

The presence of two engines in separate hulls allows for more precise control in confined spaces such as marinas.

The maneuverability of these boats is typically improved by the use of dual rudders that are located close to each powered hull for efficient steering ( BoatUS ).

When docking under power, I find it helpful to carefully assess the wind and current conditions beforehand.

This is because catamarans can be more sensitive to windage due to their larger surface area above the waterline.

By understanding how these forces may affect the boat, I can make adjustments to my approach and successfully dock the catamaran without any incidents.

Safety and Comfort on Board

Safety Features

Safety is a top priority when sailing any type of vessel, including catamarans. A well-built catamaran offers several features aimed at ensuring the safety of those onboard.

First, catamarans have inherent stability due to their wide beam and twin hull design . This makes them less prone to capsizing than monohull boats. This stability allows me to confidently navigate various water conditions .

In addition to stability, catamarans are designed with positive buoyancy, making them almost unsinkable . Of course, safety equipment such as lifejackets, flares, and first aid kits should always be onboard and well-maintained.

Furthermore, you should also stay updated on weather conditions, avoid sailing in high-risk areas, and learn your boat's safe sail limits.

Living Spaces and Comfort

When it comes to living spaces, I value comfort and practicality as essential features for my time on the water. Catamarans offer a unique advantage in this regard, as their dual hulls create spacious living areas.

Most catamarans are designed with separate cabins in each hull, allowing for privacy and comfort when sleeping. Additionally, these boats typically feature shallow drafts , which means I can access shallow waters and anchor close to shore.

The main living area, or salon, is situated on the bridge deck between the hulls. It usually includes a seating area, a dining table, and a galley (kitchen). Large windows provide ample natural light and panoramic views, making the space feel open and bright. Some catamarans even have the option for an additional living area on the upper deck where you can enjoy the sun and breeze.

One aspect of catamaran living I truly appreciate is the ample storage available. Each cabin typically has built-in storage spaces for clothes, gear, and personal items. There are also designated areas for equipment such as spare sails, tools, and water toys. This makes it easy for me to keep my belongings organized and make the most of my time on the water.

Maintaining a Catamaran

Routine Maintenance

In order to keep my catamaran in the best possible shape, I make sure to perform routine maintenance tasks. These tasks are essential to extend the life of the components and ensure smooth sailing:

Cleaning : Regularly cleaning the deck, hulls, and sails prevents buildup of dirt, algae, and other debris that could affect performance.
Inspection : Periodically inspecting my catamaran allows me to detect any potential issues before they become significant problems. I pay close attention to the rigging, sails, and lines on my boat.
Lubrication : Keeping all moving parts lubricated is vital to prevent friction and wear on components such as winches and pulleys.
Antifouling : Applying antifouling paint to the hulls of my catamaran helps prevent the growth of marine organisms that can damage the boat and reduce its speed. Make sure to do this at least once a year.

Dealing with Wear and Tear

Despite my best efforts to keep my catamaran well-maintained, wear and tear is inevitable. Here's how I deal with common issues that could arise from regular use:

Repairs : When I notice signs of wear on sails, lines, or rigging components, I make it a priority to repair or replace them promptly. Neglecting these issues can lead to more significant problems and affect the boat's performance.
Hull maintenance : If I find dents, scratches, or stiff rudders on my catamaran's hulls, I address them immediately. Repairing any damage not only ensures smooth sailing but also prevents further issues from developing.
Sail care : Over time, my sails can become stretched, torn, or damaged due to exposure to sun, wind, and saltwater. Regularly inspecting them for signs of wear and making any necessary repairs or replacements helps maintain optimal performance.
Rust and corrosion prevention : Since my catamaran is made of various metal components, I need to protect them from rust and corrosion. I routinely check for signs of corrosion and apply anti-corrosive treatments when needed.

Catamaran Brands and Models

High-Performance Models

In recent years, there has been a growing interest in high-performance catamarans. I have seen a variety of brands and models that have impressed me with their performance capabilities. One notable brand is Fountaine Pajot , which has a long history of producing a range of sailing catamarans and power catamarans. Some of their popular models include the Tanna 47 and the Bali 4.4 .

Another high-performance catamaran I've come across is the Leopard 40 . Known for their speed and exceptional handling in various conditions, the Leopard brand started with sailing catamarans and has since expanded to include power catamarans. Their models range from 40 to 53 feet long, offering both power and luxury for those looking for a thrilling experience on the water.

Cruising Catamarans

When it comes to cruising catamarans, the Lagoon brand is synonymous with luxury and comfort. With a range of sailing catamarans from 40 to 70 feet long, Lagoon offers spacious catamarans for extended bluewater cruising. Their 60- and 70-foot power catamarans are equally impressive, providing ample living space and smooth sailing experiences.

I've also found the Aquila 42 PC to be a remarkable cruising catamaran. With a focus on design and innovation, Aquila has produced catamarans perfect for exploring the open sea with friends and family. Their spacious, stable designs allow for a more enjoyable and serene journey, ensuring you arrive at your destination comfortably.

The Catamaran Lifestyle

Anchoring and Cruising

I find catamarans to be a fantastic choice for cruising and anchoring , which is a critical part of living the catamaran lifestyle . Catamarans have several advantages when it comes to anchoring and cruising, such as:

Stability : Due to their wide beam and twin hulls, catamarans remain stable during anchoring, which reduces the risk of seasickness.
Shallow draft : Thanks to their shallow draft , catamarans can anchor close to shore, enabling better access to protected coves and more beautiful beaches.
Speed : Despite their large size for cruising vessels , catamarans are generally faster than monohulls. This is a result of their slim hulls and reduced water resistance.

When it comes to anchoring, catamarans can make use of their shallow draft to anchor in locations that other boats cannot. This allows for a greater range of cruising spots, which makes the overall experience much more enjoyable and unique.

Living on a Catamaran Full-time

For many catamaran enthusiasts, the dream of living full-time on a catamaran is entirely possible. While not without challenges, there are several factors that make living aboard a catamaran an enjoyable experience:

Spacious living areas : Catamarans generally have more living area compared to monohulls, providing ample space for the whole crew.
Privacy : The separate hulls allow for private cabins, ensuring that everyone on board has their space.
Stability : As mentioned earlier, catamarans are stable vessels, making living on them more comfortable than monohulls.

Choosing Your Catamaran

Comparing Models and Features

When I start to look for the perfect catamaran, the first thing I focus on is comparing various models and features .

I determine the key factors that are essential for my needs, such as size, passenger comfort, and performance. By doing so, I can identify which catamaran models are most suitable for me.

For example, if I plan to sail with a large group, I would look for a catamaran that offers ample space both inside and out.

To help me with my comparisons, I usually create a table or list of the different models and their features:

This visual aid makes it easier for me to sort the options and prioritize my considerations, such as price, yacht type, and brand.

New vs. Second-Hand

Another critical aspect of choosing a catamaran is deciding between a new or second-hand boat.

Both options have their pros and cons, and ultimately it depends on my preferences and budget.

If I can afford a new catamaran, I get the advantage of the latest design , features, and technology. Plus, I typically receive better warranty coverage and support from the manufacturer.

However, new catamarans are more expensive and can have long wait times due to high demand.

On the other hand, purchasing a second-hand catamaran can save me a significant amount of money, and I might find a high-quality boat with low mileage or well-maintained by the previous owner.

However, this option carries more risks, as I need to be knowledgeable about potential maintenance issues and conduct a thorough inspection before purchase.

Learning Resources

Books and Manuals

When it comes to learning about catamarans, there are plenty of books and manuals available.

One of the highly recommended books is Multihull Voyaging by Thomas Firth Jones. This book provides a comprehensive understanding of multihulls, including catamarans, and is an essential guide for any beginner sailor.

Another great book to check out is Catamarans: The Complete Guide for Cruising Sailors by Gregor Tarjan.

With a foreword by Charles K. Chiodi, publisher of Multihulls Magazine, this book covers all aspects of cruising catamarans. It includes detailed information on design, construction, and maintenance, as well as tips and tricks for sailing a catamaran.

Here are a few more books that I find valuable:

The Catamaran Book by Tim Bartlett, an excellent resource for both beginners and experienced sailors
Catamaran Sailing: From Start to Finish by Phil Berman and Lenny Rudow, a comprehensive guide to both catamaran racing and cruising

Online Content and Photography

In addition to books, you can find plenty of online content and photography about catamarans.

Websites like Sailaway Blog and Boating Guide offer tips, techniques, and how-to articles for sailing catamarans.

Many of these sites also include stunning photography, showcasing these beautiful vessels in action.

For those who prefer Kindle or e-books, many of these resources are available in digital format.

This makes it easier for you to access them anytime, anywhere, allowing you to keep learning and improving your catamaran sailing skills.

To further enhance your knowledge, you can also join online forums and communities dedicated to catamarans.

These platforms provide invaluable advice and first-hand experiences shared by fellow sailors, as well as recommendations for additional learning resources.

Frequently Asked Questions

What factors should be considered when choosing a catamaran for full-time living?

When choosing a catamaran for full-time living, consider its space and layout , as it will become your home.

Look for a design with a comfortable living area , ample storage, and sufficient berths for the number of people living aboard.

Also, consider fuel efficiency , ease of maintenance, and the catamaran's cruising range .

Lastly, the overall cost of ownership , including insurance and mooring fees, should be considered.

How do catamarans perform in rough sea conditions?

In general, catamarans are known for their stability, which is primarily due to their wide beams. This makes them less prone to capsizing when compared to monohulls.

However, their performance in rough sea conditions will depend on the specific model and design of the catamaran. Some may perform better in certain conditions than others, so researching and selecting the right design is essential.

What are the key differences between sailing a catamaran and a monohull?

One of the main differences between catamarans and monohulls is stability.

Catamarans have a wider beam , which makes them more stable and minimizes the risk of capsizing.

They also have shallower drafts, which allow them to access more shallow waters compared to monohulls.

Additionally, catamarans often have larger living spaces, making them more comfortable and suitable for cruising and full-time living.

What are the advantages of catamarans for long-distance cruising?

Catamarans offer several advantages for long-distance cruising.

Their wide, stable design provides a comfortable ride and reduces the risk of seasickness.

They can also attain higher speeds due to their reduced drag and generally sail faster than monohulls on certain points of sail.

The shallow draft allows them to explore more coastal areas and anchor closer to shore. Lastly, their spacious interiors make them ideal for extended cruises and living aboard.

How does one assess the value of a used catamaran on the market?

Assessing the value of a used catamaran requires thorough research and inspection.

Start by comparing the age, model, and condition of the catamaran to similar listings on the market.

Take note of any upgrades or additions made to the boat, as these can affect the price.

It's essential to inspect the boat in person or hire a professional surveyor to ensure there are no hidden issues that could affect its value.

What essential features should be looked for in a catamaran intended for ocean voyages?

For ocean voyages, look for a catamaran with a strong, well-built hull designed to handle rough conditions.

Safety features such as liferafts, adequate flotation, and sturdy deck hardware are crucial.

A reliable engine and well-maintained rigging and sails are also essential.

In terms of living space, opt for a catamaran with a comfortable, spacious interior and ample storage.

Last but not least, good navigation and communication systems are necessary for long-distance ocean voyages.

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Catamaran Versus Deep-V Monohull

By Chris Caswell
Updated: February 26, 2018

Ever since the Polynesians started crossing oceans on catamarans when much of the “civilized” world was still afraid of the sea, the idea of the twin hull has ebbed and flowed in popularity. For centuries in the Western world, the monohull ruled the seas. At least until 1876, when Nathanael Herreshoff designed a sailing catamaran that was so fast, cats were actually banned from racing for years. Yes, cats are cool. But how do they really stack up against the classic, tried-and-true deep-V monohull?

Let’s look at the strengths and weaknesses of catamaran and monohull boats. We picked two boats of similar length: the Sea Ray Fly 400 (43 feet 6 inches) and the Leopard 43 Power Cat (42 feet 8 inches). The Sea Ray displaces more (30,900 pounds versus 25,794 pounds), but the major difference is beam: The Leopard, carrying 22 feet 1 inch of beam, is nearly 9 feet wider than the Sea Ray (13 feet 6 inches). And that is where many differences between the two start.

Before we go on, we need to provide a disclaimer. We know we’re comparing apples to oranges to some degree, so don’t go sending us angry letters about an unfair comparison. Frankly, it’s sometimes good to compare the taste of oranges and apples. And here’s the thing: We like them both! Both boats ended up with good scores in some areas, lesser in others. We do believe that the concepts that surfaced as a result of comparing these two boats will help cruiser buyers make a more informed decision if the question of cat versus mono arises in their quest for a new boat. That said, let the comparison begin.

Fast Action: Speed Vs. Efficiency

With 960 hp from twin Cummins diesels, the Sea Ray easily wins in top speed at nearly 34.5 mph compared to the Leopard (27.6 mph), but at a serious cost in fuel. At 20 mph, the Leopard is using just 20 gph, for an even 1 mpg. At the same speed, the Sea Ray is using 32.6 gph, netting 0.5 mpg.

“A strength of the catamaran is that it has such low drag,” says Gino Morelli, the catamaran designer, whose credits range from America’s Cup contenders and Olympic-class cats through power cats for charter use up to a record-setting round-the-world 125-foot cat. “It’s just basic hydrodynamics: Two slim hulls have very low resistance. They push much less water than one wider hull and therefore require smaller engines for increased efficiency.”

The Sea Ray is faster; the Leopard is more efficient. It’s nice to have speed when you want to outrun an approaching squall or get to an anchorage first. On the other hand, you’ll probably spend most of your cruising time at the lower speed more comfortable to your guests.

Our take: Both are winners. It’s your choice.

Pain and Gain: Ride Vs. Handling

“Two sharp hulls pound less in a seaway too,” says Morelli. Monohulls, especially cruising monohulls like the Sea Ray, tend to experience bow rise when accelerating, while catamarans remain flat throughout their speed range. It’s generally agreed that catamarans provide a softer ride in a seaway because their knifelike hulls slice the waves rather than crush them, and the motion of a catamaran in waves is more like a cantering horse, which some people like and others don’t. At low speeds in a beam sea, some power cats can have a sharp roll as swells pass under each hull separately, but monohulls also roll considerably, which is why gyrostabilizers and stabilizer fins have become popular aboard monohulls. But the roll moment is different for each, and you may or may not prefer one motion to the other.

In hard turns, catamarans remain flat or even lean outboard somewhat, which can intimidate inexperienced skippers more used to the inboard bank of a monohull. Handling is another factor to consider, and catamarans have both good and bad features. With the engines widely spaced in the two hulls, a catamaran is more maneuverable at slow speed and spins easily by using its engines. A monohull, with the two engines close together, requires more power and technique to spin.

The downside of handling a cat, of course, is the much wider beam: Turning a platform that is more than half as wide as it is long can take planning, especially in narrow channels. Some, but not all, catamarans also have some weird quirks, such as “sneezing” between the hulls when running in some conditons, which sends spray over the bow, and also pounding at times at idle speeds due to air pockets.

Draft is something to keep in mind too, especially if you want to explore shallow waters. The Leopard draws 3 feet 1 inch compared to the Sea Ray at 3 feet 7 inches. The Leopard also has skegs to protect its props, rudders and running gear if you decide to nose up to a beach.

That 22-foot beam has another downside: It doesn’t fit in many marina slips, which means the Leopard is likely to moor on end ties (with more wave motion) or on side ties along a seawall, while the Sea Ray will fit into most any marina slip. Catamaran slips are often more expensive too.

Our take: The catamaran wins for its soft ride in a seaway. The V-hull wins for fitting into a greater number of protected, less-expensive marina slips.

Interior Accommodations – Salon

There’s no getting away from the fact that a 22-foot-wide boat will have more space than one with a 13-foot beam, or so it should seem. But that isn’t quite true. Let’s start with the salon.

Having a 20-something-foot-wide living room is something you don’t find aboard monohulls until you pass the 100-foot length, and this is exactly why catamarans are proving popular with liveaboard owners. In the case of the Leopard, there is a large dinette, a single-seat lower helm station, and a spacious L-shaped galley with counter space measured in acres. Galley gear includes a three-burner gas cooktop with gas oven, and a two-drawer fridge.

The Sea Ray has a doublewide helm station, a pair of facing couches, and a galley aimed more at dining ashore, with limited counter space, a two-burner electric cooktop, microwave and fridge.

While the Leopard salon excels in sheer space (there is room to dance in the salon), it also has one popular feature: a front door. Both boats have sliding doors aft into the cockpit, of course, but the Leopard has an offset door that opens to the foredeck for anchoring or sunning.

Our take: The salon winner is the Leopard catamaran.

I said “so it should seem” about a wider beam on the Leopard equating to more space, which was true for the salon, but not so much for the staterooms. The Sea Ray has a conventional monohull layout for this length, with the master stateroom forward and a midship cabin under the salon with two berths that can slide together to become a double. The Sea Ray master cabin has a walk-around island queen-size berth, while the midship cabin has limited headroom, but a couch and a separate head are optional.

The Leopard, on the other hand, offers either a four-cabin or a three-cabin owner’s layout. The four-cabin is popular with chartering, placing two cabins in each hull, with a head and stall shower between, while the owner’s version fills the starboard hull with the berth aft and the bow becomes a large head with stall shower.

The shortcomings of the catamaran are the narrow hulls, which limit the width of the cabins. The berths literally fill each cabin, hullside to hullside, making these into less graceful crawl-in berths, and each cabin has limited floor space and stowage.

Our take: We’ll call this even, depending on whether you want more smaller cabins or fewer but more-spacious cabins.

Once again, sheer beam is the determining factor in flybridges. The Leopard has a wraparound dinette, doublewide helm seat, and outdoor galley with barbecue grill and fridge. The Leopard bridge still has ample space for deck chairs or kayaks. A walk-through next to the helm leads to a sun pad on the forward bridge for lounging.

The Sea Ray 400 Fly has a single helm chair and a double companion seat, as well as a dinette and mini galley, but no extra space.

Our take: The Catamaran’s extra width offers a more spacious flying bridge.

Transom Platform

The Leopard Power Cat has smaller transom platforms, but there are two of them. Leopard created a clever electric davit that can launch or retrieve a tender and provide secure stowage while underway, making tender operations easy. The Sea Ray offers a standard transom platform or an optional hydraulic platform, either of which serves as a terrific “beach” for your crew while at anchor. It can carry up to a 500-pound tender such as a Sea-Doo Spark PWC.

Our take: The monohull’s single wide swim platform is superior for tender handling, swimming and socializing

Fit and Finish

This last item is empirical, and the fact is the two boats are finished to different standards. The Leopard ($459,000 MSRP), like many catamarans, is designed for minimal maintenance for tough charter service, with expanses of fiberglass and Formica-like materials. The Sea Ray ($809,542 MSRP), on the other hand, uses fabrics and finishes that create a more opulent, yachtlike interior.

Engine access on the Sea Ray 400 Fly is good via a gas-lifted cockpit deck, while the Leopard engines are under the berths in the two aft cabins, which rise on gas lifts, but there is some upheaval of two cabins to check the oil. Again, a personal choice: one engine room or two.

Our take: Finish is not strictly a cat or mono attribute. Any boat can be finished to any level, depending upon the builder’s target market.

Catamaran or monohull? Both are right for certain owners and, just like apples and oranges, both taste good for different reasons. Boating ‘s position for decades has been and continues to be: There is no perfect boat, but there is probably a boat that is perfect for you.

More: Boats , Cruising Boats , Leopard Catamarans , sea ray , versus

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How Fast Do Catamarans Go?

Last Updated by

Daniel Wade

August 30, 2022

‍ Catamarans are known for their speed, and some vessels are fast enough to break world sailing speed records.

Catamarans can go between 15 and 30 knots, with the fastest achieving speeds well in excess of 60 knots. Sailing catamarans are sometimes twice as fast as monohulls and cut through the water with greater efficiency.

In this article, we’ll cover how fast catamarans can go based on factors such as size, sail area, and design category. Additionally, we’ll compare catamaran speeds to monohulls and trimarans and cover the reasons why multi-hull sailboats blow monohulls out of the water.

We sourced the information used in this article from sailing guides and hull speed calculations. Additionally, we sourced information directly from the manufacturers of common catamarans.

Table of contents

‍ Catamaran Speed by Type

Catamaran design can be split into different categories. After all, different vessels are designed for different tasks, as speed isn’t always the most important design consideration.

The fastest type of catamaran is the ultralight racing catamaran. These vessels have extremely narrow hulls and a remarkable planing ability. They’re designed to pierce waves and often achieve speeds in excess of 45 knots or greater, depending on conditions.

The second fastest catamaran variety is the sport catamaran. Sport catamarans often include a fairly good level of creature comforts in the cabin. They’re technically hybrid designs, because they are envisioned as a combination between a racer and a cruiser. Sport catamarans can achieve 30 knots or greater.

Cruising catamarans are designed primarily for safety and comfort. They’re often used for long offshore passages, where speed is important, but comfort is king. Despite their accommodations, cruising catamarans can still achieve a respectable 15 to 20 knots of speed—sometimes 50% faster than similarly-equipped monohulls.

Why are Catamarans So Fast?

Catamarans are remarkable vessels that can achieve amazing speeds. As a result of their unconventional design, typical calculations for hull speed (such as those used for monohulls) don’t always apply.

But what makes catamarans so much faster than equivalent monohulls? The first and most obvious speedy design element are the hulls themselves.

Catamarans don’t have a deep keel or a centerboard. This is because the second hull acts as a stabilizing device, and it helps the vessel track straight. The lack of a keel reduces weight (and equally important). It also reduces drag.

Additionally, catamarans behave in strange ways while underway. The hulls have a tendency to rise out of the water further the faster they go. This further reduces drag and makes it easier for the vessel’s speed to climb once it starts to move.

One additional characteristic is how the vessel’s sails point relative to the wind. Catamarans keep their sails perpendicular to the wind, which allows them to harness energy more efficiently. This is because, at a perpendicular angle, less wind energy is lost by spillage over the edge of the sails.

Are Catamarans Faster than Monohulls?

Yes, catamarans are typically faster than monohulls. They’re also a lot more stable, as their spaced-out hulls provide better motion comfort in rough seas. Catamaran hulls are narrower than monohulls, which also reduces drag and increases speed.

Catamaran vs. Monohull Speeds

We know that catamarans are faster than monohulls in most situations. But how much faster are they? Here’s a table of hull speeds for monohulls, which is a useful reference when comparing speed. Hull speed isn’t the absolute fastest that a boat can go, but it’s a good practical estimate for understanding the hydrodynamic limitations of single-hull designs.

Hull speed calculations for catamarans are more complicated. This is because catamarans have a greater length-to-beam ratio. And due to their narrow hulls and open center, they aren’t affected by the same hydrodynamic drag forces that monohulls are limited by.

For example, a 55-foot monohull sailboat with a waterline length has a hull speed of 9.4 knots or 10.9 mph. Its actual speed could exceed that in the right conditions, but rarely by more than a few knots.

Compare that to an efficient 51-foot catamaran, which can easily achieve speeds in excess of 20 knots in reasonable winds. That’s more than double the hull speed of a monohull with a similar waterline length and proves that catamarans operate under a completely different set of rules.

Wave Piercing

One aspect of catamaran design that makes them superior speeders is their ability to pierce waves. Specially designed catamarans have minimal buoyancy at the bow, which allows them to slice through waves instead of going over them.

This increases the speed at which catamarans can cover the distance. Think about it—a boat going over a wave has to use more energy to reach the same destination, as the height of the wave almost makes the distance further.

It’s like walking over a hill or on flat ground—you’ll take more steps walking up and down the hill than in a straight flat line. Wave piercing catamarans enjoy better stability, and they ‘take the flat road’ to a greater extent than monohulls.

Do Catamarans Plane?

Planing is when a boat’s hull rises out of the water due to hydrodynamic lift. This increases speed and efficiency, as there’s less drag but sufficient contact for stability. It also reduces rolling, as the bow only contacts the taller portions of the waves.

Catamarans have planing characteristics, but they generally don’t plane as dramatically as powerboats. This is still worth noting, as catamarans are specifically designed to use the phenomenon of hydrodynamic lift to gain speed and efficiency.

You’ll visibly notice a catamaran’s hull rising out of the water as it increases in speed. Compare that to a displacement monohull design (such as a classical cruising sailboat with a deep keel), which won’t rise out of the water in any significant way.

Are Catamarans Faster than Trimarans?

A trimaran is a catamaran with an additional hull in the center. Trimarans are usually less common than catamarans, but they have some of the same design benefits as other multi-hull sailboats.

At first glance, it would seem logical that trimarans are slower than catamarans. After all, they have an extra hull in the center, which likely increases weight and drag. However, there are more important factors at play here.

Trimarans are almost universally faster than catamarans. This has to do with weight distribution. Trimarans center their weight over the middle hull, using the outer hulls primarily for stability. This allows them to reap the benefits of a catamaran while increasing the efficiency of the wind power it captures.

Fastest Catamarans

Catamarans are popular for racing. There are several world records held by catamarans and numerous production boats with especially impressive speed-to-size ratios. Here are a few of the fastest racing and production catamarans ever built.

Fastest Sailboat Ever—Vestas Sailrocket 2

The Vestas Sailrocket is a specialized racing boat designed only for speed. This incredible vessel is actually the fastest sailboat ever built—and no wonder it’s a catamaran. A monohull simply can’t achieve record-breaking speeds when put head-to-head with a lightweight multi-hull.

The vessel, which earned the world sailboat speed record in 2012, has a modest 150 to 235 square feet of sail. Nonetheless, it managed to achieve a remarkable top speed of 65.45 knots in only 25 knots of wind. That’s about 72 miles per hour—in a sailboat.

Soon, a team of Swiss engineers will release their own version designed to beat the 65-knot speed record. Their vessel, which is a hydrofoil, will attempt to hit an incredible target speed of about 80 knots.

Outremer Catamarans

But what about production catamarans? How do they stack up, and how fast can they go? French boat builder Outremer Catamarans builds some of the fastest production catamarans ever built. These are not specialty racing boats—in fact, they’re average-sized cruising catamarans.

Let’s use the larger Outremer 51 as an example. This high-end cruising cat is known for its almost outrageous speed capabilities. In ideal conditions, owners of the Outremer 51 have reported speeds exceeding 20 knots for extended periods.

That’s a production catamaran with speeds that rival 20th-century warships. With such a fast boat, the world’s oceans start to appear a lot smaller. Plus, the genius design of the Outremer 51 allows it to be crewed by just two people.

But how do Outremer catamarans achieve such high speeds? The secret is in precise engineering and hull design, along with a sail plan that’s perfectly catered to the vessel. The hulls are sleek and narrow and designed to cut through the water with minimal drag.

From the bow, the Outremer 51 hulls look paper-thin. They increase in width gradually, which eliminates areas of sudden drag. These narrow hulls evenly distribute the vessel’s 21,825-lb displacement. Its low-buoyancy bows reduce drag and blast through waves instead of riding over them.

I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

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Catamaran vs Trimaran: Choosing the Perfect Multihull Vessel

26th mar 2023 by toi williams.

The debate over whether catamarans or trimarans are better boats has been going on for a long time without resolution, but the reason is understandable. The truth is that despite their many similarities, catamarans and trimarans have distinct characteristics that set them apart from each other, so each type of vessel offers a distinct boating experience. The catamaran vs. trimaran debate largely boils down to personal preference and how you intend to use the boat. Here are some of the things you need to consider when choosing between a catamaran and a trimaran.

What Is a Catamaran?

A catamaran is a multi-hulled boat that has two twin hulls connected by a structure supported by a wide beam. Catamarans come in a wide variety of sizes, ranging from small rowing boats to large boats that are big enough to be used as car ferries. The structure connecting the two hulls can be anything from a simple frame with webbing to a superstructure that includes cabin and/or cargo space. Most of the recreational catamarans for sale are designed to hold two to 20 passengers.

What Is a Trimaran?

A trimaran is also a multi-hulled boat, but it has three hulls instead of two like the catamaran. The middle (main) hull is larger than the two small outer hulls attached to it. These hulls are connected by a lateral beam, wing, or some other form of superstructure, depending on the model. These types of boats also come in a wide variety of sizes, ranging from recreational yachts to ferries.

Advantages of Catamaran vs. Trimaran

The advantages of catamarans vs. trimarans are mainly based on comfort. Catamarans are spacious boats, known for their large living quarters with plenty of room on board for hosting gatherings and parties. Their popularity has enticed many boat builders to create increasingly luxurious designs on larger and larger boats. The catamaran also has a more classic style that appeals to those who want a boat with a simple, sleek shape. Catamarans are best suited for boating in calm seas, lagoons, and shallow waters.

Advantages of Trimaran vs. Catamaran

The advantages of trimarans vs. catamarans mainly come down to speed. Trimarans are among the speediest boats available, offering lightning-fast speeds on open waters. Many recent winners of notable boating competitions have been won by boaters piloting trimarans. These boats also perform well when heading upwind and are remarkably stable with their three-hulled design. The anchoring gear is installed on the main hull and is easy to deploy.

Trimaran vs. Catamaran Speed

In the trimaran vs. catamaran speed debate, the trimaran is the clear winner. For long offshore races, trimarans have become the preferred vessels, and boaters piloting trimarans have won the Jules Verne Trophy in every race held since 2010. This is because of their unique design, which has speed and safety qualities that provide significant benefits for boaters.

The trimaran's third hull makes the boat considerably faster than any other hull form due to the correlation between the boat’s waterline length and its speed. Having more hull distance in the water lets the boat reach higher speeds. Trimarans can also be pushed harder and are more forgiving than other boat styles in racing environments.

That doesn't mean that catamarans are slow. Some styles of catamarans are capable of breaking world records when the boating conditions are right. On downwind runs, a racing catamaran may be quicker than a trimaran, but for overall speed in various conditions, the trimaran comes out on top.

Catamaran vs. Trimaran Performance

In the catamaran vs. trimaran performance debate, both sides have their advantages. A catamaran is easier to handle and maneuver with the boater having to handle the lines and halyards less often. However, this ease comes at the expense of speed, with cruising catamarans generally traveling slower than comparable trimarans.

Trimarans are more versatile in their performance, and they perform better than a catamaran when traveling against the current or the wind. Trimarans can be used in nearly all weather conditions, are less vulnerable to drifting, and have less roll motion than a catamaran. However, handling a trimaran requires more work than handling a catamaran, which can be exhausting over long periods of sailing.

Trimaran vs. Catamaran Efficiency

When comparing trimaran vs. catamaran efficiency, the differences are minimal. Multi-hulled boats are more fuel-efficient than comparable mono-hulled boats due to their hull forms and their lighter weights. Multi-hulled boats also tend to have smaller displacement and shallower drafts than other boat styles.

The biggest difference in trimaran vs. catamaran efficiency is that catamarans nearly always have twin engines while trimarans generally run with one engine. A trimaran also has less hydrodynamic resistance than a catamaran because it spreads out the displacement across three hulls instead of two. This allows each hull to be narrower and more streamlined.

Catamaran vs. Trimaran Stability

The stability of multi-hulled boats is one of their biggest advantages over mono-hulled vessels. Multi-hulled boats benefit greatly from their wider stance on the water, and their wide beams and floats offer higher stability than a ballasted keel. Multi-hulled boats are also more buoyant because their floats help prevent immersion. When comparing catamaran vs. trimaran stability, the better boat will depend on the conditions on the water.

A catamaran's geometrically stabilized design reduces both heeling and wave-induced motion, providing a stable platform underway and at anchor. However, the catamaran's design is not as suitable for navigating heavy seas as the trimaran's build. The trimaran's three hulls provide excellent stability even in rough waves, but this can also make a trimaran less comfortable than a catamaran when the water is calm.

Catamaran vs. Trimaran Safety

Both catamarans and trimarans are considered to be safer on the water than mono-hulled boats. A catamaran has superior resilience and roll inertia that makes capsizing extremely unlikely. Its speed, steadiness, and ease of motion due to a lack of ballast also contribute to increased safety.

Trimarans are considered the safest multi-hulled boats because their three-hulled design makes them almost unsinkable. Many also have a core made of high buoyancy foam, helping them stay afloat even in the most brutal storms. Weight centering and a complete anti-drift scheme also make the boat safer for everyone aboard.

Trimaran vs. Catamaran Maintenance

Comparing trimaran vs. catamaran maintenance costs shows that many of the costs will be very similar for both types of boats. These costs include yearly boat service and repairs, annual haul-outs, and insurance coverage but exclude major upgrades. You will also have to budget for dockage, winterization, and storage for each year if you don't intend to use the boat year-round.

Boaters are advised to budget between 5% and 10% of the boat's value for annual maintenance costs if their boat is less than five years old and a little more if the boat is older than that. Different maintenance jobs can be charged in different ways. Sometimes, the charges are based on the length of the boat while other charges are based on the number of hours worked.

Catamaran vs. Trimaran Cost

If you are looking for an affordable seafaring vessel, catamarans and trimaran are both good choices. There are many reasonably priced catamarans and trimarans suited for families as well as other models that provide more luxury for an additional cost. The materials that the manufacturer used to build the boat and the electronics included will also impact the price of the boat.

With so many different factors impacting the cost of different boats, you should choose the best vessel for you based on the features you want as well as your budget. Doing some research using the information on Rightboat's listings will help you find the right combination of quality and affordability you are looking for. Because we offer both new and used boats, nearly any boater will be able to find a boat in our listings that fits their needs.

Choosing between a catamaran and a trimaran may seem simple at first, but the different sizes, styles, and amenities offered can make the choice much more complicated than you would think. If you prefer comfort and ample space while cruising, a catamaran may be the better choice. However, if you like speeding across the water and enjoy the thrill of racing, then a trimaran may be your best option.

Whichever boat you decide to purchase should fit your specific circumstances and requirements. Start the decision-making process by deciding what the primary use for your new boat will be. Will it be used more for family cruising or sport fishing? What bodies of water will you be boating in? Are you planning on staying close to shore or taking the boat into deeper waters? All these factors will impact whether you should choose a catamaran or a trimaran.

With Rightboat's listings, you can learn about the features of the latest catamaran and trimaran models and see what you can expect to pay for the boats you are considering. You can sort through our listings by price, age of the boat, length of the boat, or listing date and then narrow down the results of a search using the rest of our filtering tools. If you are interested in buying a new or used catamaran or trimaran, take a look at our listings, and see what we have to offer today!

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Catamaran Cruise or Speedboat Trip? Which One to Choose?

Exploring mauritius by boat: catamarans or speedboats.

Mauritius is a popular tourist destination for its stunning beaches, vibrant culture, and friendly people, and there are many exciting things to do in Mauritius. Crystal-clear waters surround Mauritius, home to a diverse range of marine life.

If you’re planning a trip to Mauritius, one of the most exciting things to do is explore the beautiful coastline by boat. Boat tours are the perfect way to discover this marine environment. Whether you want to snorkel, swim, or relax and enjoy the scenery, a boat tour in Mauritius is an unforgettable experience.

In this article, we’ll compare two of the most popular types of boats – catamarans and speedboats.

So, which one is better for you? Catamaran or speedboat

Catamarans are perfect for those who want to relax and enjoy the scenery while exploring the waters of Mauritius. These boats are spacious and comfortable, with plenty of room for lounging and enjoying the stunning views. They are also very stable, making them an excellent choice for families with children or those prone to seasickness.

Regarding cost, catamaran cruises in Mauritius are a bit more pricey but offer more amenities and comfort. If you’re interested in snorkeling or diving, catamaran cruises in Mauritius may be the better option as they offer more space for equipment and easier water access. If you want to try out watersports available on the Island of Ile aux Cerfs, the speedboat is the better choice.

Read more: How to choose the perfect catamaran cruise in Mauritius .

For a more adventurous experience, a speedboat may be the better option. It is perfect for thrill-seekers who want to explore the coastline, discover hidden coves and lagoons, and enjoy water sports such as water skiing and parasailing. Speedboats are a more affordable option and great for those on a budget.

Both offer unique experiences, and the choice ultimately depends on your preferences and interests. Mauritius catamaran cruises are a way to go if you want to relax and enjoy the views. But a speedboat is the better option if you’re looking for adventure and excitement.

See also: Mauritius boat tours that should not be missed.

Factors to consider when choosing between catamarans and speedboats

When choosing a boat tour in Mauritius, several factors must be considered. These include:

Your budget : Boat tours can vary in price depending on the boat type, the tour length, and the activities included. Determine your budget before choosing a boat tour.
Group size : Consider your group size when choosing a boat tour. Catamaran tours are ideal for larger groups, while speedboat tours are better suited for smaller groups.

Tips for a safe and enjoyable boat tour

Remember your sunscreen and a hat to protect yourself from the sun.
Follow the instructions of the boat tour operator.
Bring your snorkel equipment.
Be aware of the weather conditions and listen to any warnings from the boat tour operator.

In conclusion,

Whether you choose a catamaran tour or a speedboat tour, you will have the opportunity to see some of the best places in Mauritius. With some planning, you can enjoy a safe and enjoyable boat time in this stunning island paradise.

Our experienced drivers and knowledgeable guides at Taxi Service Mauritius are here to help you make the most of your time on the island. Whether you need airport transfers in Mauritius or want to book a guided sightseeing tour of the island’s top attractions, we’ve got you covered. Book your next adventure with Taxi Service Mauritius today. Visit our website now to learn more.

Which is better for a romantic boat tour in Mauritius - catamarans or speedboats?

Both catamarans and speedboats can offer a romantic and intimate experience in Mauritius. However, catamarans are generally more spacious and comfortable and offer a more relaxed and laid-back atmosphere. On the other hand, speedboats can be more thrilling and adventurous, which some couples may prefer.

What is a popular boat tour to take in Mauritius?

One of Mauritius's most popular boat tours is a catamaran cruise to Ile aux Cerfs. This stunning island off the east coast of Mauritius is known for its beautiful beaches and crystal-clear waters, making it the perfect spot for snorkeling, swimming, and exploring.

Should I choose a catamaran tour or a speedboat tour if I'm travelling with small kids?

A catamaran tour may be a better option if you're traveling with small kids. Catamarans are more stable than speedboats, which can help prevent seasickness and make for a smoother ride. Catamarans also typically offer a more leisurely experience, which can be better suited for young children.

Can I rent a private catamaran or speedboat for a tour in Mauritius?

Yes, you can rent a private catamaran or speedboat in Mauritius for a more exclusive and personalized experience. Contact us for availability and pricing.

What is the best time of year to go on a catamaran or speedboat tour in Mauritius?

The best time of year to go on a boat tour in Mauritius is during the dry season, which runs from May to November. The weather is generally sunny and dry during this time, and the waters are calm and clear.

Do Catamarans Make You Seasick? (7 Tips That Works!)

Motion sickness, or seasickness, can be incredibly uncomfortable and can ruin a sailing trip. People who get motion sickness might avoid travel or boating trips to avoid this feeling.

There are certain steps you can use to prevent or reduce seasickness or motion sickness.

Table of Contents

Another way to avoid motion sickness is to ride vehicles that are smoother. A smoother ride has been known to be kinder to people who get motion sickness.

Do Catamarans Make You Seasick?

Catamarans are known to have a smoother ride than similar mono-hull vessels, making it easier to sail without motion sickness. Catamarans also offer better ventilation and vision in the living quarters. In a catamaran, the living quarters are situated on the deck.

This allows for better vision while moving and the possibility to open windows.

In this article, we will explain sea sickness in regards to catamarans as well as general knowledge on motion sickness and what you can do to prevent or reduce it:

Catamarans and Seasickness:

People susceptible to motion sickness are less likely to get sick on catamarans than other mono-hull ships.

Catamarans cause less chance of motion sickness because they allow for gentler motion and be more predictable.

Catamarans can also prevent seasickness while in the hull.

In a mono-hull vessel, you are more likely to have a strong rolling effect with the waves. While below deck, where you cannot see the waves or the boat’s motion, the rolling of the waves, or other movements, can be more likely to get you seasick.

Catamarans are also less likely to make you sick due to the boat’s overall structure and design.

Multi-Hull vs. Mono-Hull:

Catamarans are a multi-hull vessel with much of their living quarters based on the deck on top.

They often have separate twin engines placed away from the living quarters. This can help prevent seasickness by keeping the noise and fumes away from where you are staying.

In contrast, mono-hull vessels have their living quarters close to the engine, increasing the chance of sickness.

Catamarans also offer better ventilation and vision in the living quarters. In a mono-hull vessel, the living quarters are set into the hull, while in a catamaran, they are situated on the deck.

Because of the decreased chance of seasickness, catamarans are often used for commercial or tourist vehicles.

In regards to tourism and commercial sailing, it is better to take people out on steadier vessels.

Ferries also utilize catamarans. Using a catamaran for ferries is the best way to reduce sickness among passengers.

7 Ways to Reduce or Prevent Seasickness On Catamarans:

If you suffer from seasickness, there are some things you can do to reduce the sickness or even prevent it altogether.

The first thing you need to know is what type of vehicle you are going to be on. This will help you plan for the journey and the degree of sickness you can experience.

There are basic things you can do to lessen the feelings of seasickness on catamarans.

These include:

Eating lighter meals and avoiding large or fatty meals can help reduce seasickness.
This works because nausea can be worsened by heavy food sitting in your stomach.
Much in the same way as the above tip, alcohol can cause nausea on its own, which can exacerbate nausea felt from motion sickness.
While on a boat, you will want to sit in a smoother area.
Smoother rides can reduce motion sickness. On a ship, the closer you sit to the middle, the smoother the ride.
Keeping your eyes fixed forward on a boat can also help. If you start to feel sick, the best thing you can do is to stay in the open and focus on the horizon ahead of you.
If being on the front of a vessel is not an option, you will want to find any fixed point.
It can also help if you steer the ship if possible. Most people who get motion sickness in vehicles find that driving or steering provides a distraction and requires focus in front of you that can help you fixate.
This is effective both in sailing or driving a car. I myself get motion sickness and find that driving helps.
For some people, telling yourself that you will not get sick can work.
This is helpful when your motion sickness stems from anxiety about traveling and not inner ear complications.
Much in the same way you drink ginger ale when you are sick, this can help the nausea of motion sickness and travel.

If Nothing Else Works:

Some people have found luck with pressure point bracelets, but these do not work for everyone, and there is not a lot of evidence of effectiveness.

If none of these work for you, there are medications that you can take to help with motion sickness.

These can include medications to reduce nausea, or if needed, put you to sleep in certain travel situations.

Over the counter medications can be used to reduce the feelings of sickness.

Dramamine or Meclizine can be taken a half-hour to an hour before you think you might be sick. These can cause drowsiness, so you will want to make sure you do not take them to be alert or operate machinery.

If over the counter medication does not work, you can speak with a doctor to get prescription medication for this problem. They will be able to help you pinpoint your problem and properly treat it.

An instance of seasickness or motion sickness does not require a doctor’s visit unless you think you are also dehydrated. Dehydration is a dangerous condition that requires medical attention, and the symptoms can be similar to motion sickness.

Overall, seasickness is a highly uncomfortable affliction that can make travel or recreational boating uncomfortable. Seasickness should not prevent you from traveling and otherwise experiencing these things.

With these tips and tricks, or medication if needed, you should experience the travel and recreational experiences provided on a boat.

If you manage your seasickness, you can do anything from ferrying to islands, snorkeling, sightseeing, and other exciting activities.

General Info On Seasickness

Motion sickness, which can sometimes be called seasickness while on the water, is caused when the motion sensed in your inner ear doesn’t match up with the motion you are seeing or the motion that you are not able to see.

These mixed signals between your ears and your eyes can cause motion sickness. The severity of motion sickness depends on the person and the vehicle.

Motion sickness is more common in children and pregnant women, but anyone can get it.

People who suffer from motion sickness can get this while traveling in all vehicles, including cars, trains, planes, boats, or even on amusement rides or roller coasters.

If you suffer from motion sickness, you can feel uneasy, sweaty, or dizzy. Motion sickness also causes nausea and vomiting.

Other symptoms include pale skin, increased saliva, and other symptoms that come with nausea.

There can be other contributing factors to seasickness that is not purely based on a vehicle’s motion. These include anxiety, poor ventilation, inability to see out windows.

Luckily, catamarans usually have great ventilation compared to larger boats with closed cabins.

You are more likely to get motion sickness if you are nervous or you feel anxiety about the method of travel, such as on boats or in planes.

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Catamaran vs. Trimaran: The Differences Explained

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Most boat lovers know the differences between a catamaran and a monohull. But when it comes to differentiating between a catamaran and a trimaran, things can get tricky because it’s not always clear how much difference the extra hull of a trimaran makes in performance, safety, comfort, and handling. If you’re trying to choose between the two, this is a post you’ll want to read before making a decision.

Besides the number of hulls catamarans(two) and trimarans(three) differ in speed, safety, accommodation, helming, and anchoring. Generally, catamarans are more manageable in a marina and provide better accommodation and comfort. Trimarans, on the other hand, are faster and more fun to helm.

In this post, we’ll cover these differences in greater detail to make it easier for you to choose between a catamaran and a trimaran. First, let’s quickly review each multihull type.

Table of Contents

The Lowdown on Catamarans

Informally dubbed a “cat,” a catamaran is a type of multi-hulled sailing craft with two equal-sized parallel hulls. Cats are typically geometry-stabilized, leveraging their wide beams for stability. That’s unlike monohull boats, which use ballasted keels for stability. Catamarans also have a smaller displacement, lower hull volume, and a much shallower draught ( draft ) than similarly sized monohulls.

The earliest forms of catamarans can be traced way back to the 17th century. They were primarily used for fishing by the Pavaras community in Tamil Nadu, who preferred them over other fishing vessels due to the extra balance and stability provided by the twin hulls. Later on, the British adopted the concept of twin-hulled boats and popularized it worldwide.

Modern catamarans are much more sophisticated than their ancestors. They’ve evolved in terms of the usage versatility, construction, and design, giving rise to two primary configurations:

Small-Waterplane-Area Twin Hull (SWATH)
Wave-piercing catamarans

The hulls in a catamaran with a SWATH configuration are typically submerged. That means they’re less affected by ocean waves , which is great for stability when sailing in rough waters. In the recent past, SWATH configurations have been used on research vessels and rescue ships.

Their wave-piercing counterparts, on the other hand, have low-buoyancy bows fitted on the twin hulls. The bows allow the hulls to puncture ocean waves instead of riding over them, making catamarans with such a design faster on rough waters than SWATH cats. In the recent past, wave-piercing cat designs have been used on passenger ferries, military vessels, and yachts.

The Lowdown on Trimarans

Also known as a double-outrigger, a trimaran is a type of multihull boat with one main hull flanked by two smaller “floats” (technically known as outrigger hulls) connected to the larger hull by lateral beams. Such a design makes trimarans incredibly stable, meaning they’re hard to capsize even in the roughest of waters.

The earliest forms of trimarans can be traced to the Austronesian people and are still the most common hull design you’ll find on traditional fishing boats in Maritime Southeast Asia. The majority of today’s double outriggers are yachts meant for racing and recreation, but some warships and ferries have this design.

The Differences Between Catamarans and Trimarans

The most apparent physical distinction between a catamaran and a trimaran is that it has three hulls instead of two.

But other than that, are there other differences between the two vessel types you need to know? Do those differences make one type better than the other?

To find out, let’s compare the two types of multihulls based on the following merits:

Comfort and Accommodation

A Cat’s geometry is ideal for comfort and accommodation. The two load-bearing hulls provide additional habitable space, and you can always create a sizable nacelle between them. Connected to this central living space is a large cockpit, and there are cabins on either end of the hulls. This arrangement is perfect when you’re looking to relax a bit as the party rages on in the saloon because it gives you a bit of privacy.

And with flybridges virtually standard on modern catamarans, you have extra space for entertainment and lounging. The deck area is safe for kids, and the fact that catamarans don’t heel much means that you can do things like cooking at ease. Also worth mentioning is that cats can carry a decent load, meaning you can stock up on food and gear when going away for an extended period.

While trimarans do provide a decent degree of livability, they fall short of catamarans in two regards. First, they heel more than cats, making it difficult to do things like cooking on board. Second, they support much less load than catamarans. To put things into perspective, some 45 feet (14 meters). Cats can carry nearly three tons of payloads, whereas similarly sized trimarans can barely support half that load.

Overall, catamarans provide better, more comfortable accommodation than trimarans.

One of the main concerns when choosing any water vessel is how easy it’ll capsize in the event of a storm. If you’re looking to spend more than just a couple of hours on the water, you want to sail on something that won’t capsize/sink easily because sea conditions can sometimes fluctuate within a short period.

When it comes to safety, three hulls are better than two. Having one main hull and two overhangs on each side makes a trimaran more stable because of two reasons. First, the side overhangs widen the beam of the vessel, which minimizes the chances of the boat flipping over when hit by a large breaking wave from the side. Second, trimarans are typically designed with the weight centered on the main hull, further enhancing stability.

Multihull stability is a complex topic and should be understood in detail if you want to stay safe at sea!

Why do catamarans capsize?

On the rare occasion that a trimaran flips over, it’ll stay afloat. That means if the worst happens, a capsized trimaran will turn into a potential life-saving raft that’s easier to spot from a helicopter. That’s because almost all trimarans designed in the last decade or so come with closed-cell foam distributed throughout the various parts of the boat to provide reserve buoyancy.

Thanks to this kind of construction, you could cut most trimarans into pieces, and each would still stay afloat.

While catamarans are typically more stable than monohulls, they’re no match for a trimaran in this regard. Hypothetically speaking, it would be easier to tip over a catamaran than a trimaran if both boat types were subjected to equal magnitude storms. That, however, doesn’t mean that catamarans aren’t safe. They’re still harder to flip over than monohulls and will stay afloat when that happens because they come with the same closed-cell foam found in a trimaran.

While on the subject of safety, it’s worth mentioning that trimarans require less vigilance as far as reefing is concerned . Since catamarans heel less, most of the extra wind force translates to more “push” on the rig, increasing speed. But because the pressure exerted on the sail nearly quadruples when the wind speed doubles, you need to be extremely careful when timing your reef to keep a cat sailing flat.

The same goes for reefing a trimaran, except that the slight heel gives you more room for error in terms of the timing.

Most people who’ve ever steered both a trimaran and catamaran will agree that the former is more fun to sail. Most light trimarans, especially tiller-steered ones, have a terrific response to the helm. They have a slight heel that somewhat feels like a monohull, but the angle is a bit limited.

A catamaran is stable, but it doesn’t heel. While heeling may be frowned upon by people who prioritize comfort and accommodation in a boat, it’s one of the most exciting parts of sailing. With three hulls to ensure stability, trimarans combine the heel of a monohull with a catamaran’s stability to deliver the best sailing elements of monohulls and multihulls in a single package.

Considering that trimarans are more stable, you may be better off with one if you’re looking to have some fun as you perfect your helming skills.

Speed is another area where trimarans outperform their twin-hulled counterparts. Typically lighter than catamarans, trimarans need less sail distance to hit double-digit speed averages. A trimaran can maintain a formidable course up-wind when fitted with centerboards/daggerboards (as is often the case for modern models).

While a catamaran is still faster than a monohull of identical size, it falls short of the trimaran in terms of sheer speed. Understand that this doesn’t make catamarans slow boats; it’s just that tris are typically designed with more emphasis on performance.

Why are Trimarans Faster Than Catamarans?

Trimarans are easier to anchor than catamarans because they allow you to keep the ground tackle in and deploy it from the main hull.

However, catamarans are more maneuverable and manageable in a marina. They also handle docking lines more conveniently.

Catamarans vs. Trimaran: The Verdict

In summary, here’s what the differences between a cat and tri mean for anyone trying to choose between the two: A catamaran is a better choice if you’re looking to accommodate many people on board for something like a party because it’s more spacious and comfortable than a trimaran. On the other hand, a trimaran is an ideal choice for speed junkies and individuals looking to push their sailing skills to the next level on every stable platform.

Hopefully, that has cleared the air and made it easier for you to pick a more suitable option for your sailing needs.

ResearchGate: A comparison of the motions of trimarans, catamarans and monohulls | Request PDF
Why are trimarans faster than catamarans?

Owner of CatamaranFreedom.com. A minimalist that has lived in a caravan in Sweden, 35ft Monohull in the Bahamas, and right now in his self-built Van. He just started the next adventure, to circumnavigate the world on a Catamaran!