Rib Power Boat For Sale – 15950.00

Filed in for sale by on June 1, 2016


"Topcat" is a unique twin hull with hydrofoil RIB design which gives superb stability in rough seas and is very safe. Non slip deck. Stainless A- frame. This is a brilliant boat and lots of fun it's top speed is 44 knots which it achieves effortlessly even with 12 adults comfortably seated aboard. It is very economical to run because it normally travels with most of its hull out of the water thanks to the hydrofoil wing. The boat has just been re-tubed in Hypalon by Tilley Inflatable's (Tidel.biz) arguably the best re-tube specialist in the country, the engines were serviced at the same time by Plymouth Marine and the GRP hull was checked for any minor dinks and polished. I also had some fuel gauges fitted. The boat looks brand new. Also fitted to the boat is a Lawrence VHF radio with distress button, Hummingbird fish/depth finder, danforth anchor with chain& warp. Here is some info direct from the Hysucat web page - As soon as the Hysucat is powered the craft is lifted manually from stem to stern, as its foil system prevents it from having to follow the entire contour of each wave. The faster the boat is propelled, the greater the quantity of air it traps within the tunnel between its two hulls providing additional lift. With the hydrofoil design, the more a wave tries to bury itself beneath the bow, the more resistant any trapped cushion air becomes resulting in the forward section of the boat once again being lifted up. Rather than slamming or burying her nose, the boat will ride smoothly from wave crest to wave crest with a stable level running attitude The hydrofoils fitted on the Hysucat reduce the effective hull resistance by raising the vessel enough to be lifted out of the water. Effective sea keeping is also improved as is stability. Fuel savings are substantial – up to 30% or more. Being a twin hulled craft, Hysucat obviously doesn’t heel in a turn as mono hull would. Therefore, in the case of a twin engine configuration, the outboards are angled outwards in order to maximize propulsion in a manner that capitalizes on the water being funnelled between the hulls as well as the slipstream created by the foils. However the Hysucat will never roll over in turns, on the contrary it will keep a very stable and dry ride. The Hysucat’s advantage comes from the improved lift to drag ratio compared to any planing hull. As well as the reduction of wetted area of the hull, the foils will also improve the manoeuvrability of the catamaran. There is no negative behaviour of a vessel fitted with foils except that the craft will be more sensitive to trim in flat water conditions. Once the vessel will get up on the foils at around 15 – 18 knots (depending on the weight), the resistance of the boat will be very small therefore the sea ride will be improved and the water friction will be decreased. One big misconception related to hydrofoils is that the foil will be damaged or fall off the if it strikes something in the water. Unless the strike is substantial, foil systems are able to withstand considerable abuse before being severely affected. However, in the worst case of a high speed impact with rocks you will probably lose the hydrofoil instead of ripping off the hulls. The construction around the hydrofoil is specially reinforced, so even if it happens for you to hit something, you will not sink, you will continue running with the remaining hydrofoil. The foils are made out of stainless steel using US Navy guidelines for impact strength so the foil is probably the strongest part of the boat. Up to 40% increase in speed; cost savings on smaller engines while keeping top speed; improved sea-keeping in rough conditions, smoother ride; increased payload carrying capacity with less speed loss; faster acceleration, better response when turning on foils; drier ride in choppy seas, less wake at higher speed; 20-40% reduction in fuel consumption; 20-40% increase in cruising range

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