"Shortwave Sportfishing" wrote in message
...
I had a debate with a friend this morning concerning miles vs gallons
per hour.

I contend that gallons per hour is a more reliable method of
determining how far and fast a boat can/should go. Obviously, my
friend took the opposite viewpoint.

What is the collective wisdom concerning these measure of fuel
efficiency?

Later,

Tom

First of all, miles per hour is totally unrelated to fuel efficiency. It is
simply speed. A 19 foot ski boat and a 65 foot sports fisherman can both go
40 mph with vastly different efficiencies.

Gallons per hour is only indirectly related to efficiciency. You can sit
idling at the dock and use a certain number of gallons per hour - and your
efficiency is zero.

Efficiency is miles per gallon. If you know your speed then gallons per hour
can be converted to miles per gallon. Likewise if you know your gallons per
hour then speed can also be converted to miles per gallon.

Knowing how far a boat can go is related to miles per gallon and fuel tank
capacity.

Basically you were both wrong!

--
Peter Aitken