Speaking in general terms so as not to upset anybody.
Generally if you put bucketloads of horsepower into a sailing catamaran hull
, it will tend to squat down in the stern and dig a great big hole for itself. Generally a motor catamaran
capable of 23 knots will have a flat run aft and no rocker aft. The opposite of a sailing catamaran.
The squat can be controlled to a degree with a trimtab/ planing board arrangement aft.
All this comes at the penalty of adding drag under sail.
Look at the ridicule the Macgregor
26 gets for trying to turn a sailboat into a ski boat
So you may have the choice of the no rocker under water
profile of the MOTORSAILER or the rockered sailboat underwater profile with the TRIMTAB arrangement but a much lower top speed.
Either way, good luck motoring into 25 knot
headwinds with that rig in the air , at 20 knots.