0 a device that causes a ship or aircraft to move, consisting of two or more blades that spin at high speed -- 螺旋桨
The prototype, we are told, has electric motors on each wingtip to drive folding propellers.
It is known that the flagella perform a propeller-like movement with a specific handedness resulting from the gear-like structure of their molecular motors.
Two fixed-pitch propellers, two semi-balanced rudders, and three forward and three aft thrusters provide high manoeuvrability.
Furthermore, the simplicity of this model allows simple extensions to more complicated geometries like skewed marine propellers or windmills.
The system is intended to be deployed in an organization that, amongst other activities, designs marine propellers.
Based on the natural motion of fish, this technology was originally intended for application on propeller-driven marine vehicles.
The wing dropped and the outer starboard propeller struck the snow.
In addition, it is developed to allow other design par ticipants to carry out several design tasks themselves without interacting with propeller designers.
