Patent ID: 7666041

Claim:
A planing amphibious vehicle comprising: a hull; an engine mounted in the rear two-thirds of the hull; a water jet drive path within the planing amphibious vehicle in which water travels from a jet drive intake, through a marine jet chive, to a jet drive outlet; and an engine cooling system, the system comprising: liquid coolant ducting for circulating a coolant around the engine; a first heat exchanger connected to the liquid coolant ducting; a path for outside air for the first heat exchanger within the planing amphibious vehicle in which air travels from an air inlet, through the first heat exchanger, to an air outlet; a second heat exchanger disposed remotely from the first heat exchanger and connected to the liquid coolant ducting; and a path for external water for the second heat exchanger within the planing amphibious vehicle in which water travels from a water inlet pipe, through the second heat exchanger, to a hull water outlet.