boat speed

[harry25175]

i was wondering are there any formula to calculate the estimation of boat speed and engine rpm based on: total boat weight, boat length, and total outboard hp, gear ratio, propeller pitch and number of unit outboard used??

[99yam40]

Prop Slip Calculator

But it does not include all of what you are asking

This may give you more info

http://www.yamaha-motor.com/outboard.../perfbull.aspx