My first airboat attempt has a major porpoising problem. It goes great, turns great etc until it starts to plane out, then SLAP SLAP SLAP it porpoises out of control. More throttle and it flips. I originally had the motor mounted about 3 inches back from where it is now. It porpoises the same either way. Angled motor down about 3 degrees....it makes just a tad improvement but still basically uncontrollable when it starts to plane out. It appears like the hull is fine cause it goes to plane out real easy and nice and straight.
Is the motor setup way too much for this 11 by 20 inch rigid foam boat? It's 2" thick. The motor on it is brushless with following specs: 3 cells: 18A, 190W, 850g, 49mph, 8600rpm 9 by 5 GWS prop. Try a smaller motor maybe? Smaller prop? Any ideas? Thanks!
