[PUP] Unsailboat fuel consumption

[John Harris]

Engineering theory generally would say that producing the same horsepower at 
a lower RPM will reduce fuel consumption, therefore overproping i.e. more 
distance per revolution will improve fuel consumption, maybe to the extent 
of a few percent.

This is still a bad idea because it reduces the ability of the motor to 
produce proper RPM for maximum horsepower resulting in reduced top speed, 
and increased risk of damaging the motor at the maximum speed the engine 
will drive the boat.

John Harris