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Mr. Luddite

On 3/18/2014 1:58 PM, Boating All Out wrote:
In article ,
says...

On Tue, 18 Mar 2014 12:00:14 -0500, Boating All Out
wrote:

In article ,
says...

On Tue, 18 Mar 2014 09:49:58 -0500, Boating All Out
wrote:

I suppose at full power 2 15hp Hondas can only burn so much fuel.
The question is at what speed.

===

At full power, wide open throttle, they will burn about 3 gallons per
hour total. At 70% of WOT about half that.

That's in line with the specs I gave. The question is can one engine
push it at 8 knots. Can't answer that.

===

Possibly in ideal conditions, but even if it can, you're still only
getting about 5 mpg (8 kts / 1.5 gph). Best fuel economy and range
would be with a single small diesel, somewhere around 20 horsepower
would be about right. At 70% of WOT that would burn about 1 gph with
a speed of around 7 kts.

Specs say:
Half load, one engine at low mid speed (3,000rpm).
Fuel consumption is 0.407 gph. per engine
Speed is 8 knots.
100 gallons fuel gives 1,965 nautical miles

Yabut the fuel would be stale by the time you got there.