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post #15 of Old 12-11-2012
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Re: Could 27 hp fit here?

Originally Posted by dabnis View Post
For starters you could run a course with a GPS and compare it with the projected hull speed, taking into account how dirty the bottom and/or prop is.

After that you could tow something like a small drogue to try to simulate head wind and/or heavy chop and see how much the speed drops off. If that cuts the towing speed a lot, maybe by a third or half, maybe it doesn't have as much thrust as you want. Perhaps comparing the numbers to your previous boat might give you a starting point.

Not very scientific, but it would be a place to start

Paul T
Forgot this, the Beta specs show 3,600 RPM. If you can,t get close to this the prop may be over pitched or dirty. Might be good to have a diver do a hull and prop cleaning before any testing?

betamarine - Engine View

Paul T
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