I went on one of them went the same speed, I was driving
in a shipping channel, not the wisest idea, but It was fun, It was a Zodiac with a 40hp Honda Outboard and hey stu our old boat may not be able to cross the ocean, but this can, Well I think
It has a 1500 Gallon Tank, But youd need to stop somewhere
At a small island or something lol
At 8 knots it uses 1 nautical Mile a gallon
At 28 knots it uses 90 GPH
Has 2 Caterpiller C-18's @ 1015 hp Each
Now theres a diesel engine for ya stu