[PUP] Unsailboat fuel consumption

[Hal Wyman]

If you look at the graphs in Beebe's "Voyaging Under Power", he gives an
empirical way to calculate fuel consumption given merely waterline length
and displacement versus speed.  His results, while obviously approximate,
seem to be reasonably accurate, i.e., within 20% or so in the examples I
have checked.

Hal
(or see http://www.halwyman.com/rangecalc2.html)

> 
> So maybe we can compile a list here from real numbers that we 
> know from our own performance of our boats. I could be a bit 
> eye opening as I think it is the weight i.e. tons/ft, not the 
> beam that uses the fuel ;-)