Patent ID: 7670200

Claim:
A vehicle operable on dry land, wet land, and water, the vehicle comprising: a land-based vehicle; at least two pontoons coupled to said land-based vehicle, each pontoon having an internal volume configured to provide buoyancy for said land-based vehicle; a track system disposed on each of said at least two pontoons and adapted to propel said land-based vehicle; and a skid steering system coupled between said land-based vehicle and said track system and configured to selectably control a direction in which said land-based vehicle is propelled, wherein said skid steering system comprises: two brake clutches, each brake clutch coupled between a rear wheel hub of said land-based vehicle and said track system disposed on one of said at least two pontoons; and controls configured to independently actuate each brake clutch; wherein when actuated by the controls, each brake clutch slows or ceases rotation of said track system coupled thereto.