Because it rides so much smootherWhy? The thin narrow twin hulls slice through the water; whereas the broader surface of a monohull slaps at it. A cat also has a tunnel – the faster the cat goes, the more air is able to enter the tunnel. As the cat lifts out of the water and goes back down, air gets trapped inside the tunnel providing the effect of an air shock-absorber. In effect, it rides on a cushion of air rather than experiencing the pounding through the waves as is typical with a monohull. Even with a deep-vee monohull, the displacement of water still spans a width equal to the beam of the boat. On the other hand, a cat hull spans less than one third of the beam, hence you have a much narrower hull slicing through the water with a cat.
Because it is so much more stableWhy? With monohull designs, the deeper the vee the greater the rolling effect when at rest. When the vee is flattened to give more stability, you have a boat that will pound like crazy through the waves.
Because it is more fuel efficientWhy? The main factors that influence fuel economy are weight and hull design. It is commonsense that the heavier the boat, the more power that is required to push it along and the more power, the more fuel used. For Example – a 26’ Mono would weigh approx 4.5 tonnes, powered by twin 230hp V6 mercruisers, cruising speed would be approx 22 knots and maximum speed would be approx 30 knots. Fuel used at cruising speed would be approx 90litres/hr (total). Whereas a PowerCat® 2600 weighs 2.2 tonnes, powered by twin 115hp 4 stroke outboards, cruising speed 26 knots and maximum speed 36 knots. Fuel used at cruising speed approx 45litres/hr (total).
More importantly though is the hull design. The wetted surface is the area of hull(s) touching the water when running. The more wetted surface, the more drag and friction that is created. This means more power is required to move the boat and once again, more power means more fuel used. With a PowerCat® which is a genuine planning cat, there is as much as 40% less wetted surface than a comparatively sized monohull. The upshot of this is that the PowerCat® can be moved using less power and less fuel to achieve the same speeds. This can be demonstrated by the clean spray coming from the chines when the PowerCat® is at speed. Not every cat however is a genuine planning cat; many are non-planning or displacement. Displacement hulls generally only have a maximum speed of 18 – 20 knots. They need to have high tunnel clearance so the tunnel does not slap at the water when at rest or underway. A planning cat hull on the other hand creates its own tunnel clearance by rising out and above the water and filling the tunnel with white soft water spray. This spray also creates extra lift in the tunnel.
Because they are saferWhy? Firstly, the more stable the boat, the safer it is. Secondly and more importantly; a cat hull means twin engines and twin engines gives you double the security. If you loose an engine miles out to sea, a cat hull will still be able to steer straight and get you home at a respectable speed. PowerCats® can even plane with just one engine. Loose an engine on a twin engine monohull and yes you’ll get home but you’ll be fighting with the steering all the way home and the boat simply won’t steer straight. That could be a long boat ride home.
Another major safety feature with a PowerCat® is to do with the hull construction method. A series of fibreglass bulkheads forming several water tight compartments are fitted into each sponson. This gives great structural strength. Then a series of solid glass cross-bearers are placed across the hull to support the floor & deck. Fuel & water tanks are fitted into place between the bulkheads, and are foamed into position to prevent movement. This construction method means that if the worst does happen and you find yourself floating in the water with your boat upside down, the hull will always remain at float instead of sinking to the ocean floor. This is called positive buoyancy. This is one of the many reasons that PowerCats® are the preferred choice for rescue and commercial vessels.
And simply becauseThe superb design and sea going capabilities!
The excellent build quality and attention to detail!
The ease of maintenance!
The excellent, friendly and experienced after sales service!
All adds up to a very good reason why a PowerCat® is a better choice
After all that’s why a PowerCat® was awarded Best Trailerable Australian Cruiser and Overall Australian Boat of the Year 2004 !
PowerCat® Celebrates 25 Years!
PowerCat® Simply a Better Choice!