20' center console and 90hp evinrude. What will cruising speed be?

[Fr. Frank]

Originally Posted by Bushwacker

there’s a great story about a competition conducted in the early 60’s on Biscayne Bay between the Moesly 21 and a couple of other boats with successful racing histories (I’m guessing maybe Bertram and Magnum or Formula) by a “secretive government agency”.

Carl did reveal the name of the agency a few years back, but I think it was inadvertent, so I won't repeat it here. He also named both Formula and Donzi as among the 5 or 6 early competitors for that contract back in '64.

He said Donzi made a prototype 22' patterned after their race 28' that "just wouldn't go", and Formula, (which had just been bought out by AMF) submitted the early 233, which needed a lot more power to get on plane.

That contract as awarded to Seacraft eventually was modified to included both 23' & 27' hulls along with the original 21'.

The 23' and 27' hulls later built for the unnamed agency were both called "SeaVette". Only the 23' SeaVette was later introduced to the public.

Carl was not specific, but did say there were 3 prototype 27' SeaVette boats built in '67, each different, and of the later government 'production' 27' SeaVette he said, "of course, we never built very many of them, just a very few..."

More rare than the 15' Scampi...


As for the thread, I rigged lots of early 20' Seacraft hulls with 85-115hp V4 motors, and even with a single 70 hp. Johnson once. It, too, ran and planed just fine.