1QwkSport2.5r In regards to the sponsons not getting on plane would possibly adjusting the engine a couple of degrees up not assist in getting on plane? Could the back end be too light? As I mentioned earlier the issue I had with the hydro doing a strange porpoising type walk I adjusted the ride planes on the sponsons to about one degree by sanding down the surface and adding an additional layer of lite ply and adjusting the engine up about 2 degrees up, just a thought. I had also considered curved turn fins on the sponsons to aide in turning and to prevent roll overs.
Jeremy_H I also considered a design similar to the cobra with a vent down through the hull further back ie end of the sponsons rather than at the very front, I would think water pickup may be an issue. The PTO idea was to keep the engine CG down providing a much more streamlined hull, another consideration that may be incorporated into a cobra type design may be the use of an inducted fan rather than a prop.
Last edited by arcdude; 01-17-2014 at 07:48 PM.
Reason: forgot something