It would seem to me that GPH is not a very useful measurement but one
boaters have been stuck with because of the fluid nature of their
roadway. Now comes along very accurate distance measurement via GPS and
you should be able to come up with GPM just like a car. This to me
seems like a much more useful piece of info. Yowweee, another gismo
for the dash in the boat.

Ron

Southeastern Virginia, home of PETA
"People Eating Tasty Animals"