mikebrls

I think I remember someone stating that there is about a 10% extra speed when switching to the arneson drive's with the larger surface prop's .
also if I remember correctly '' to much partying in my youth "
the hustler 38 with 525's ran around 10 mph faster with the surface drive vs the bravo xr style .

Rik

Yes, they react the same.

black thunder 46

Why do you spin them out??
Brett

delsol

There was an Italian race boat that ran them, have pics on my other computer...

Panther

I wonder if #5's would be the easiest upgrade if you're trying to raise the X dimension to gain speed. That would raise your bullet a lot higher than it is now and you could space down if needed. Probably the easiest upgrade I would think?

J-Bonz

Only pic I could find............

Unlimited jd

I was checking out the apache in the Solomon's island pits and it looked like the drives were pretty high. I imagine 5's would end up too high since they are 6" shorter than the 3a's that are on it.

MikeyFIN

That's a pleasure version.

MikeyFIN

Nose high= Rocker that's needed with surface drives, just like Sutphens which have had surface drives and has plenty of rocker.

A 41 should fare well with Arnesons and I have many times wondered why they weren't tried already. Maybe Bobby S would be the source to ask or just measure your rocker. Richie Stuphen surely would give advice also.

We talked many hours once about this particular issue a few years ago on general terms and he cemented my belief that a boat with enough rocker and even a delta pad do not need steps...

cadillacboats@me

Bobby S for sure and even Mark Wilson from Twin Disc. He works with them everyday on all kind of hulls.
Saluti, Cadillac