Originally Posted by IanMcDean
By slamming i mean it basicly goes through the wavesand when going over realy slams back downhard. It may be stearn heavy and we have tried getting people as far forwards as possible but it doesnt help..... It is proped right we get the right engine performance it just doesnt work right on the plane and getting to the plane...
Our Delta did very similar things, I think it's typical of a boat that is;
very deep vee
stern heavy (take a critical look at how she lies in water)
possibly lacks the torque to climb onto the plane quickly
Try trimming all the way in (ploughing) when you start, this goes some way to lift a heavy stern
Lifting foils on engine (cheaper option than trim tabs)
Modify driving technique radically.
Last point is basically to try and prevent the boat flying off the top of a wave, the stern (in a stern heavy boat) would normally fall away dramatically.
I think our boat is slightly underpowered and it doesnt take much to knock it off the plane if you dont judge the conditions right, it then takes some time to regain speed and go onto plane.