This is only an addition to the original Airboat-design by SlightlyAbnormal. When I recreated his boat I found a problem with the original MotorMount. The motor was sitting off-center. So I redesigned it to fit. New file is attached here.
The original design provided basic parts only. To me the boat looked quite "naked", so I went for an additional driver-seat and stearing lever. The seat needs to be printed twice.
Parts are also included here.