Former power plant engineer and Thingiverse user Michael Christou turned an ineffective airboat concept into a surprisingly effective ice sled. His impeller driven Turbo Ice Sled design is steered by the two front skids, and uses standard RC electronic parts. While he has not tried the ice sled out on the open ice yet, Christou has used a indoor ice rink for testing and found it to work very well. You can learn more about this project over on 3DPrint.com: http://3dprint.com/84623/3d-printabl...urbo-ice-sled/