Posted by GregSeaHawk on
URL: https://forum.seahawk17.org.uk/engine-size-tp4023996p4024008.html

Hi Peter,

I don't fully understand the physics of the thing, but I have been told that because of the slow revving nature of the inboard engine and its heavy flywheel, the old Inboard 1.5hp engine has similar grunt for climbing waves as a light-weight high-revving outboard at 3.5hp.

I've also mentioned to people that ask about engines, in the past, that despite the recommendation for a 4hp engine in the brochure, Reedcraft supplied a 3.5hp Yamaha two-stoke to my father when he bought his SeaHawk from them, so I doubt that you'll find any significant problem with your friend's, in terms of performance against tide, but obviously, there's nothing better than a test in real world conditions.

Best of luck and good wishes for the coming season.