#2228: Spinnersteer

Today’s invention is a way to simplify the controls on model aircraft.

Rather than mimic the complexity of ailerons and other flaps, it would be possible to have a twin-engined model turn using only gyroscopic forces.

gyroturn

In the diagram, two counter-rotating propellors are shown.

To make the plane turn to starboard, a metal rod would be pushed outwards along the drive shaft from inside (gravity acts on the extended rod, creating a clockwise torque about an axis into the plane of the diagram).

The effect would be to make the engine rotate to the right. When the course had been changed, the rod would be withdrawn again.

Turns in the opposite direction would be achieved by extending a rod in the other propellor.

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