26' Formula twin V-8 I/O
Does anyone know where I can get answers to these question's
*longitudinal center of gravity
*hull resistance angle
*half entrance angle
The mfg. said to try this site!
Any help would be appreciated.
Thanks
Richard

If you want answers, you need to supply specifics.

"26' Formula twin V-8 I/O" basically is meaningless information.
"1987 Formula 262LS with twin 260 Mercs with same-rotation Alpha Ones" is far more significant.

Longitudinal CG is one thing we can probably help you with, but either Formula or a trailer manufacturer will have that info handy.

And I'm not trying to sound stupid, but could you explain exactly what you are looking for with "hull resistance angle" and "half entrance angle". If there is a weblink that describes that terminology, please post the link so we can "see" what angles you are looking for.

Welcome to the site.

Thanks for response.
1979 26' Formula F260C twin 888 Mercruiser's Alpha One same rotation.
I don't have any link's. Mfg. sent me to this site.
Richard

Okay, you only provided ONE of the answers needed to try to help you.

We now know the boat, but I'm not confident I understand the angles you are looking for. Pictures or descriptions of those terms will help us help you.

You give us partial info, we give you partial answers.

But for question 1, we have enough to start helping you.

Anybody got a F260C with twin smallblocks?
Better yet, anybody got one in dry storage?



A question for you: If you let us in on exactly why you need this info, we might be able to leapfrog the middle ground and help you with the outcome or end result you are trying to achieve..

I'm repowering was looking to use Castoldi pumps. They want these answers before they will go any further with application sheet.
Thanks
Richard

all those specs are really meaningful for a displacement or semi-displacement hull, not a fully planing recreational hull.

Have you decided on Castoldi for some specific reason?
You can actually fit the V6 outboard jet lowers to your alphas with minimal work (swapping the vertical shafts is the most significant alteration). You know, the jet lowers that most of the RIB's use for surf duty. Beauty part is that they are relatively inexpensive, perform well, and require ZERO hull modifications. Even better is the part where you can change bak to props as soon as you realize you hate the 30% performance loss you get with the jets...

Anyhow, Castoldi seems to be wanting specific data that seems to be almost impossible to find the description of on a Google search. I find "half entrance angle" only mentioned in reports of ship collisions...