Clearly I am not intervening quickly enough to prevent this kind of mistake. It’s a Fontaine-Pajot Maryland 37 Trawler. It is intended for displacement speeds. Top speed is reported to be 15 knots with 140 HP per side. It is not only dragging transom, but a huge transom. I don’t know but it sure looks like a cat designed by single hull designers. Even a heavy powercat of the same size but correct hulls should do 20 knots with about 80 hp per side. I tried to make an intervention, but clearly am not famous enough.