RE: Underwater prop
Hi J.M.,
Not knowing what budget Brod has in mind, I took the largest budget motorseries I know of, the link was only to point out the website.
If the set-up is kept light, these motor(s) will make it go at least twice as 'fast' as with the stock set-up.
I deliberately did not mention the Plettenberg/Lehner/Neu motors, as they are not only very good, but, in my opinion, too expensive for such a project.
Brodjack has his 'ballpark' figures, now it's up to him.
Regards, Jan.