| 摘要 |
<p>A vehicle having a wing, a forward propeller configured for forward flight, and an aft propeller configured for submerged travel in a rearward direction. The vehicle center of mass is aft of its floating center of buoyancy, and center of mass and the floating center of buoyancy lie between the first and second propellers. The vehicle has a natural floating orientation in which the vehicle, while floating, has its first propeller located in the air and positioned for initiating airborne flight in a forward direction, and in which the vehicle has its second propeller located in the liquid and positioned for initiating submerged travel in a rearward direction.</p> |
