New boat problems

It's a good thing you moved the engine ...

 

That is good news. Just a matter of keeping air away from the prop.

I do think you would be better off putting effort into a nicely designed cat. Current one is at least useable now. I would be wary of turning hard at speed though.

Rick W

 

Quite right Rick I do need a new design & I hope you will be there to guide me http://www.boatdesign.net/forums/showthread.php?t=23634

 

Have you tried different props?

You can get adjustable props that allow you to experiment with the pitch. It sounds like the current prop has too little 'bite', and just thrashes at higher speeds.

In a conventional hull this would be the first thing you would look at.

 

New Design Idea

I've not had time to read your subject threads yet, but I do have an idea to pass before you...its a RIB with a unique hull...but you might not have to build it as a RIB initially.

Please send me a private email as I don't wish to post it on the forum at this time.

brian.eiland@gmail.com

 

It looks to me like the engine is too far back, the sponsons
need to be extended.

???????????????

But what do I know??????