This is unique !
http://www.youtube.com/watch?v=5EUqS1yETGo
This one seems to be all terrain (including water)
http://www.youtube.com/watch?v=eQ1W1AFrPp4
http://www.youtube.com/watch?v=GAkZSrXr4BY
http://www.youtube.com/watch?v=5yIkxN-2BLM
Archimedes Screw Propulsion ! {:)} Now that seems to beg for discussion ! :discuss:
very innovative {:)} never thought that Archimedes Screw can be used for an amphibious vehicle's propellsion :salute: think tat the screw will get wornout very fast due to friction.
{:)} nice stuff