Four Winns TH36

Our Video: 

Seen from the dock, the aft foil is visible underwater. As for the forward foil, it joins the two hulls at the midships section and also remains submerged, even at high speed. These two foils are fixed and, for the time being, at the end of the prototyping phase, are still mechanically welded and attached in a rather crude manner to bases with watertight casings, so that they can be easily replaced. The next foiling surfaces will be made of aluminum or composites. The vertical reinforcement of the forward foil may be done away with, and the overall hydrodynamics will be optimized.

During our tests, the effect of the foils was felt from speeds of 15-18 knots, at which point the powercat starts to “climb”. It was clear of the water for good from 20 knots, at which speed fuel consumption was 25% lower than on the standard TH36. In terms of speed, the readings above 20 knots are those normally obtained with the two Mercury 350 hp models... except that this example was only doted with twin 300s! So, in a way, we gain 100 hp. But what we really like is the TH36's trim stability and, above all, its ability to smoothly absorb waves. At 30 knots, the multipower doesn't fly, but it literally plays with the chop.

Builder: Four Winns
Architect: Marc Lombard Yacht Design
Overall length: 38’5” (11.7 m)
Hull length: 37’6” (11.42 m)
Beam: 14’5 (4.4 m)
Draft: 3’3” (0.98 m)
Air draft: 13’11” (4.24 m)
Displacement: 15,960 lbs (7.24 t)
Fuel: 2 x 122 US gal (2 x 465 l)
Water: 2 x 25 US gal (2 x 95 l)
Engine: 2 x 300/350 hp outboards
CE Category: B8/C12

www.fourwinns.com