This was originally done using a type of air compression device known as a Supercharger which is powered by the engine crankshaft.

Some plates have lugs on their inner diameters that lock them to the engine crankshaft.

However, days before, the engine crankshaft had broken and, so as not to disappoint his guests, he decided to fly the Hawk instead.

That equals once for every complete revolution of the engine crankshaft.

The alternator was switched to run off the gearbox (which itself had a closer ratio 5th gear) instead of the engine crankshaft.

This latter clutch arrangement (unlike the other two variations) is driven via a gear from the engine crankshaft.

When slipping it still transmits torque despite the difference in speeds between the engine crankshaft and the transmission input.

Drive was transmitted directly from the engine crankshaft to a rear-mounted differential by means of a chain.

The losses are in general higher than direct kinematic linkage of intake air compressor to engine crankshaft.

The input of the clutch is connected to the engine crankshaft while the output may drive a shaft, chain, or belt.