Modify Water Scooter

[momo]

Here is something some of you haven't heard of. This scooter comes with two 12volt lead acid batteries for 24volt operation.
I removed them and added a Bosch fat pack 36volt. Big difference in speed, Probably close to 6mph now. The motor looks like a brushed motor which Dewalt uses in their cordless drills. What i want to do is get a brushless inrunner and try to go with 72volts. Any ideas????? I will post some pictures soon.
http://www.x-tremescooters.com/sea_scooters/x160/x160.html

 

[swbluto]

Woah, just... woah. Dude, if one of those existed that was made my someone a little more reputable than x-treme, I'd definitely be interested in it. I doubt the extreme version is designed to take of forces of something above a nominal speed of like, maybe, 14 mph. Or possibly lower. Or possibly higher. Still, I wouldn't use it for upgrading.

The thing is, I have no idea where I'd use that. Maybe a giant pool...

Hmmm, thinking a little bit more, I wonder if it might be possible to use a water-designed outrunner motor (Maybe using a sea-ready form of steel? Does it exist?). If you could pump 3 kW through one in air, imagine how much power you could pump with the water circulating around it! It'd definitely be powerful!

 

[spinningmagnets]

You mean this one?

And a higher-watt version:

 

[momo]

yes, that is the one. here are some pictures of internals..
motor shaft diameter 5mm
motor shaft length 20.34
motor mounting screw spacing 29.45mm
motor length 69.75mm
motor diameter 41.75mm
View attachment 4View attachment P9140206.JPGView attachment 2

 

[johnrobholmes]

Castle has one in their factory with a big ass outrunner and hv110 setup. I bet it frikin hauls! The hardest part is keeping the battery box water tight for deep underwater trips.