Most Common Hull Types

Jan 27, 2023

Most Common Hull Types and What is a Marine Fuel Bladder?

Various kinds of boat hulls exist in the same way you’ll encounter various kinds of boats, and each is a feat of engineering and design. Despite the wide range of hulls from which to choose, they’re meant to perform one of two things: plane above water or displace water. Boats are designed to perform various things, and the differentiation lies in their hull shape. Within each group, several configurations define the boat further and its uses. If you’re wondering about hull types and what a boat gas tank bladder is, we provide in-depth information on these two topics.

Boat Hull - Marine Fuel Bladder


Boats with this hull type are extremely stable, so we recommend them for fishing and various uses on calm, small water bodies. Generally, these boats are less costly to construct and feature a shallow draft. They can easily get above the plane unless you’re sailing on very calm water, and they usually offer a rough ride due to their flat bottom.

If you’re looking to transport a heavier load, we recommend these boats, which need a small engine. You can invest in a fishing boat, which benefits from flat hulls because of their shallow draft and adequate space, which are perfect for fishing on calm water bodies, for instance, ponds and small lakes.


These hulls are usually displacement hulls, which are meant to sail smoothly through the water with minimal effort. You’ll find this hull type on a canoe. If you’re looking to invest in these boats, we urge you to be cautious because they exhibit decreased stability in the water and are likely to capsize easily. Therefore, extra care is necessary when exiting, entering, and loading such kinds of boats.


These planning hulls are the most common type for powerboats. They’re meant to plane above water at higher speeds and offer a smoother ride when sailing through choppy water. Also, they typically feature a bigger engine than round or flat-bottomed boats.


If you’re a fishing or sport boat enthusiast, we recommend these boats. Also termed, cathedral hulls, this type features a combination bottom, which is M-shaped. You’ll find them rather stable and buoyant besides getting on plane fast. Furthermore, they provide good volume below and considerable overhead deck space. At speed, you can expect them to pound upon encountering choppy water, making them ideal for lakes.


Boats with these hull types comprise distinct and separate hulls. They can be trimarans or catamarans. Multi-hulls can be sail or powerboats, featuring planning or displacement hulls based on their engine size and shape.


These feature two hulls with a trampoline or deck in between. They offer a range of benefits, including great stability and considerable living space aboard the vessel based on the type and size.  Huge catamarans have gained popularity in charter use since they provide more deck and interior space along with the easier movement to decrease the likelihood of seasickness.

With their two engines, these boats are highly maneuverable, however; they need more room for turning and berthing. The small ones however simply have a trampoline between the hulls.


These are often sailboats, though not always. They comprise three hulls: a main one and two side hulls for stability. On smaller ones, you find that the arms holding the amas are capable of folding inward, making them narrower and trailerable in some cases.

Trimarans need smaller engines and sail faster mainly because of the decreased wetted surface (the area that contacts water).

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Fuel Bladder

A fuel bladder is a kind of flexibag that functions as a fuel container. They’re flexible, collapsible storage bladders that offer storage and transport for bulk liquids, for instance, fuels. When it comes to a marine fuel bladder, the membrane contains hazardous liquids of all types, particularly fuel. These bladders are an excellent addition to numerous marine vessels, so if you’re seeking an affordable and convenient way of storing extra fuel when boating, we recommend our robust marine fuel bladders.

These bladders accommodate fuel to prevent leaks and spills, and are constructed from flexible materials that don’t interact chemically with fuel. These tanks don’t merely accommodate fuel in a metal tank. You can find them holding additional fuel as well. You’ll find the tanks stored on watercraft and deployed whenever you require additional fuel.

What is a Boat Gas Tank Bladder?

Fuel bladders aren’t merely for fuel tanks. They can perform other functions because of their flexibility and strength. Numerous marine vehicles can’t resupply fuel at steady intervals. This might be the result of the marine environment or the demand for maximum mobility.

The tanks that transport water or fuel should be durable, with excellent resistance to various climate conditions. Our marine fuel bladders exhibit great resistance to various climatic conditions. Our bladders make ideal fuel containers because they can sustain high-performance levels, irrespective of weather conditions.

Functions of a Boat Gas Tank Bladder

If you’re looking to transport liquids safely, our marine fuel bladders are the way to go. In terms of size, you find that they’re rather flexible and can function in fishing boats, yachting boats, and other marine vessels. They frequently range in size from numerous gallons to more than 1000-gallon sizes. For this reason, boats can undertake prolonged voyages.

A marine fuel bladder is primarily PVC-made. This material enables the bladder to contain water or different liquids without making direct contact with the gas or air in the tank. Consequently, the bladder can enlarge within the pressurized air space as the tank becomes filled with liquid.

Advantages of a Boat Gas Tank Bladder

Manufactured from plastic and rubber, a marine fuel bladder features important components for transportation on vehicles or boats. It’s worth noting that extended yacht and fishing trips typically consume higher fuel.

The last thing your boat requires is to run out of fuel and be towed. We offer a range of bladder tanks for prolonged sailing, yachting, and sailing. These durable, and dependable units are perfect for cruise ships and ferrying. You can place them on deck, in vented lockers, or wherever you favor aboard your vessel. Beware that our marine fuel bladders are flexible enough for filling with diesel fuels or gas with an ordinary pump nozzle.

If you’re wondering which hull type suits your boat, this in-depth offers valuable information to help you make an informed decision.

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