Here is an entry for the Autodesk kinetic contest, the idea behind this is to be able to have a snowmobile during the winter and then easily convert it to a jet ski in the summer! The idea is that you have the engine turn the snowmobile tracks as normal, but to also have it hooked up to something like a tractor PTO so you can hook up the propeller for the jet ski. The rest is just a jet ski shell you put over the tracks,(the tracks will also have to be disengaged). This is just a project I have had in my head for a long time now, but its a little to big for me to tackle so I figured I would put it out their and see if someone else might want to try it.

To get the full view download the google sketch up model here:

Good Luck!!!
nice drawing, but jet-skis don't have propellers. It is also possible to ride an unmodified snowmobile on water: <a href="http://www.youtube.com/watch?v=BFhJS8RMpfs&NR=1">http://www.youtube.com/watch?v=BFhJS8RMpfs&amp;NR=1</a>
<p>Yea snowmobiling on water is dangerous but fun i am sure. From my experience with both jet skis and snow mobiles this would be top heavy. Once i saw somebody put Styrofoam insulation on the bottom of a snowmobile with a space for the track to come through. He went about 25 feet and rolled over his snowmobile took on water and sunk.</p>
Ya, i meant for the propeller to be used as the pump to suck water in and thrust it out. I know what you mean i have some friends who water skip on snowmobiles, its pretty sweet!

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