This thing looks like it would be fun to ride!!! Airsled? Airkart? Would it have enough power to be fun????....
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From my extensive ''many'' years of R/C Arcraft & race Boat set up & power figuring ect.,, if that being 3 - 4 hp,, & spinning around 3400rpm,, It would need a prop with ''a butt load '' of pitch to get it moving,, with the prop being that diameter.
From what I can see of it,, that prop doesn't look like it's got much pitch @ all.
Got me think'n though,,
Say a back pack motorized prop rig for like ''Para Sails'' mounted on there,, might get it moving pretty good though,, or @ least the prop from one.

Another thing you ''definitely'' would want to do is,,,
Being those skis are ''way'' to small,,, I think a slick set up would be to cut 3 water skis in half,,, & use the front halfs of those.
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