There was a certain amount of cooperation between me and boatdiesel.com when his program was written, so I am well aware of it.
We use slightly...
Tabs and Turning
On shaft-drive boats that roll to the rudder rather than make much of a turn, putting the tab down on the side you wish to turn...
Trim Tab effects
The force that a trim tab exerts depends on its area, the sine of its angle of attack and the square of the boat speed, so at...
Propeller Design Program
If you care to E-mail me a sample set of data:-
Total laden weight
Number of engines