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Mr. Luddite

On 3/18/2014 12:55 AM, wrote:
On Mon, 17 Mar 2014 21:49:28 -0400, Wayne.B
wrote:

On Mon, 17 Mar 2014 17:21:20 -0500, Boating All Out
wrote:

If I had the money to spend I'd design a light trawler capable of 15
mpg.

===

There's no such animal. Even small sailboats do not get that kind of
fuel economy under most conditions.

I get around 8-9 MPG at hull speed in my boat.

7 knots is the typical cruising speed of a 36' Grand Banks trawler with
the single screw, 120 hp Ford Lehman diesel. 7 knots is 8 mph. At that
speed the engine is burning just about 1.5 gallons per hour, so it's
getting just about 5.3 mpg. Granted, that engine is of an old and
antiquated design, but almost tripling that mpg seems a bit ambitious.
Are you going to build the hull and superstructure of the "light"
trawler out of Styrofoam?