They were double-planked (diagonally) mahogany and were glassed on the outside. The rip guys didn't like diesels because they'd walk away from the rip. Sabi's grey 'June Bug' was gas. I ran day and night rip charters (when the owner/operator broke a leg at the start of the season) in the late 70s or early 80s in another 26 that had a Seamaster (a marinized, big block Ford, as I recall) in it. I believe the reduction gear was 1.0:1 and even though Brownell's had a too small wheel (like all the Eldridge McInnis bass boat designs), they'd barely move when you dropped them in gear at idle speeds. A member mentioned Charlie Haig - one of striperdoms early lions - a fascinating guy and fascinating story.I believe it is #16 I think 18 26 ft's were made It is cold molded mahogany that has been glassed or epoxy over so she is tight.
Fred Brownell put all Detroit Diesels in his boats but this was repowered with Cat 3208 sometime after. Another 1971 26 sold recently and that had a Cat also.