I'm going to look at a 13' deep V aluminum boat this weekend for fishing. 66" beam and 15" transom. The guy has 2 motors for it. A late 80's 20 hp Merc (been in the salt) or a 9.5 hp Johnson (freshwater only) from the 70's. The Merc runs good, but won't troll. The Johnson runs and trolls great...