Originally Posted by
pmgoffjr
I'd be very careful here. A raker/tempest/similar high rake three blade, big diameter prop is designed for two things, it needs to run high and surfacing the blades, and it gives bow lift. Neither one of those is going to make that porpoising monster behave any better.
I'm saying this because I battled the same demons as you are, fighting a really bad design that just doesn't allow for modern props and designs.
Every single time you lift enough to get off the back corner chines, it'll porpoise, and short of trim tabs, it'll keep doing it until you trim back down and stick the corners in the water again. It can't be fixed by thinking you just need more lift to keep the bow high, when you do that, it turns into a skateboard on a icy road. I swapped ends several times before it became painfully obvious that hull simply doesn't like that running attitude.
The prop I'd be looking at that will give you the high and FLAT running attitude, and keep the beast under control would be a powertech TRO4.