Need some help getting in touch with the designer as I am interested in building one. Have sent emails to Tim Mumby directly, also sent to Harwood...
Shaft material is ss2205, with a 2:1 reduction ratio shaft RPMs would be 1250 and the shafts will still be able to take the torque comfortably....
gonzo, twin engines is a requirement from the customer. so does 2.8t bollard pull from 2x300hp engines sound doable to you guys? If its not even...
The hull is an aluminium work boat hull, 6mm bottom thickness, 4mm sides, 6mm frames and stringers. It isn't a repower as such, the old engines...
When referring to planing hulls it was mainly due to the fact that they have smaller fast spinning props which aren't suited to towing. Changing...
The shafts are currently 1 3/4" and sized for 450hp engines. Yes I understand that its an extremely inefficient solution but its the most cost...
I am trying to do some propeller calculations for a 11.8m planing hull. The main problem is one of the requirements is a 2.8t static bollard pull....
blunt trailing edges do have some advantages sometimes, unless you have a very sharp trailing edge, the flow from the pressure side of the...
Hi there, been lurking on these forums for a while now and finally have something to contribute. We've adapted a thai long tail work with an...
