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@ Aurelia I have really enjoyed your posts, Greg. You are ever so right to call attention to the "less than 10 knot" situations. When the sea gets nasty the first thing you have to do is to drop off plane. After that, if conditions worsen, things sometimes get critical. And those are the...

@ rogerbum In my opinion nothing will really do much to stop a lumpy sea from knocking the featherweight bow of a C-Dory every which way except mass (to provide inertial resistance to a change of direction) up front. Permatrims apply a downward force on the bow from the transom where they...

@ Wefings Thanks for your replies, Marc. I just found this head to head comparison test between a Honda BF60 (Standard) and a BFP60 (High Thrust): http://www.tradeboats.com.au/news-reviews/2013/6/honda-bfp60-power-thrust-outboard-engine-review/ The lower planing speed and low-end control...

@ Wefings Transom wedges and 4-blade props are a given, Marc. But, assuming that everything else is equal, would not hi-thrust engines with lower gearing and larger diameter propellers magnify the effect of these two measures? At least in the 0-20 mph speed range that is of concern to me...

@ Sunbeam Thank you for your reply. High-thrust engines should provide upward instantaneous upward thrust and should get you on plane quicker and at a lower or zero speed. This is in contrast to trim tabs or hydrofoils where the upward thrust starts at zero and only increases with the speed...

@ Wandering Sagebrush I love my C-Dory but for the 20 years I have owned her I have tried to improve her handling going into lumpy seas. One problem was that her light bow was being thrown up exposing her flat bottom to the wave as well as sideways throwing me unpredictably off course and even...

The time has come to chuck my 23 year old Honda BF45s and I am considering replacing them with high thrust Yamaha 50Ts with 13-1/4" four bladed props. I would mount the new engines with shims to achieve more negative trim. The Sea Pony (a 22' C-Dory) is used exclusively in the ocean and she...