Rubber Cord Used as Self-Starter for Light-Plane Engine (Apr, 1941)
Rubber Cord Used as Self-Starter for Light-Plane Engine
USING the principle of the rubber-band-powered model, William Strohmeier, of Lock Haven, Pa., recently demonstrated a new lightweight self-starter for engines on private planes. By turning a crank on the instrument panel of his Piper Cub monoplane, Strohmeier winds up a rubber shock-absorber cord that runs the length of the fuselage. Thirty turns of the crank stretches the cord to the required tension. When the energy of the taut cord is released, it spins a metal inertia plate attached to the motor. This turns over the engine and starts it firing. The ingeniously simple arrangement makes the dangerous operation of spinning the propeller to start the motor unnecessary. The mechanism can be used with any type of light-plane engine.