porposing questions

boaterntexas

Petty Officer 1st Class
Joined
Feb 4, 2003
Messages
254
My first experince with a vee-hull and I'm having some trouble controling it.. ON my old tri-hull/flat bottom bass boat the trim made a huge diffrence in the perfomace, I would start down then trim up, to gain speed, and move the "wetted" surface back. however on my runabout, with a stren drive, it pretty much seem to want to stay trimmed all the way down, if I start to trimm up the boat will porpose, when trimmed down I rewach plenty of rpm and topend speed, but it seems that there is alot of the boat in the water, so by nature I want to trim up,, I can trimm it up a tad, but the waves we hit after that become pretty ruff. anyone care to educate me on controlling 17.5' vee-hull runabouts?<br /><br /> thanks.<br /> THomas
 

cinder1995

Petty Officer 3rd Class
Joined
Jun 8, 2003
Messages
89
Re: porposing questions

Buy a Hydro-foil fin for the cavitation plate. Keeps boat from porpoising and chine-walking. Although it drops the top end about 8mph. On my 20'Bayliner anyways.
 

boaterntexas

Petty Officer 1st Class
Joined
Feb 4, 2003
Messages
254
Re: porposing questions

"chin Walking" ??? How much of an Rpm drop did you notice?
 

cinder1995

Petty Officer 3rd Class
Joined
Jun 8, 2003
Messages
89
Re: porposing questions

R.P.M.'s were not affected by the fin. It only takes the existing cavitation plate and extends & widens it.
 
Top