Quote:
Originally Posted by redpoint5
You make the adventure sound worthy of my attention. Do go on.
I have no contempt of nature, or for the physical properties of material science because they have no agency. Those challenges are best suited to my disposition.
All that said, the SeaDoo Spark is pretty darn efficient. I'm reading about 3 gallons per hour at full throttle, probably for the 60HP motor. I'd want the 90 for ability to pull a tube. Still very efficient.
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I wonder what it burns at a leisurely (for a Seadoo) 20 knots. Maybe 1 g/hr? A 32 foot 15000 pound trawler with a decent Diesel engine usually burns 2-3 gallons an hour averaging 8 knots. And you can make coffee and breakfast sandwiches and bacon while you’re under way.
I would think a lightweight 15 foot commuter boat fitted with an 18 hp two cylinder diesel like my Columbia sailboat had would plane at 15-18 knots and burn less than 1/4 gallon an hour. At 15 knots, 1/4 g/hr is 60mpg. Actually, 60 nautical mpg, which is 72 statute mpg. One nautical mile is 1.2 statute miles.
Wow freebeard, I’m gonna have to watch that video now! I thought when you mentioned foils, you were talking about those electric foil boards, basically like Marty McFly’s hoverboard but with the “keel” or whatever with the motor at the bottom. Skateboard sized basically, which would suck on a rainy winter commute in Canada. But a real boat with that efficiency sounds awesome. Watching in a sec! Sounds expensive!