Amphibious vehicle

An amphibious vehicle in which a flap that receives lift from water in water navigation is provided to be deployable and storable at a front side in a travel direction of a vehicle body, wherein

• the flap includes a lower flap which is stored to come close to a front surface of the vehicle body and an upper flap which is stored to come close to an upper surface of the vehicle body,
• at least one of the lower flap and the upper flap includes a first flap member and a second flap member and is configured such that a flap length in a direction orthogonal to a vehicle width direction is variable,
• the first flap member and the second flap member are connected to be slidable with respect to each other,
• the flap is configured such that the flap length is variable by a sliding operation of the first flap member and the second flap member,
• a driving unit which deploys and stores the flap,
• a navigation state detecting unit which can detect a navigation state in moving on water;
• and
• a control unit which controls driving of the driving unit based on a detection result of the navigation state detecting unit,
• wherein the control unit operates the driving unit such that the flap length is longer when the navigation state detecting unit detects that the navigation state is a floating state, and the control unit operates the driving unit such that the flap length is shorter when the navigation state detecting unit detects that the navigation state is a sliding state.