Originally Posted by
arcdude
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.
I tried adding almost 10* of upward thrust angle to the engine mount (prop) and it got no better. The hull sits low enough in the water that the book tubes are in the water and the surface tension is too great to overcome which then makes it submarine. Me and a buddy tried for a couple hours trying to get it up on top and no such luck was the case. There is nothing else that can be done with it as-is; it just needs new sponsons.