My home-built 'Puff Duck' hovercraft.

It was powered by a 650cc BSA motorcycle engine which drove two twelve-bladed
centrifugal fans for lift. A Villiers invalid carriage engine drove, by belt, a cutdown
Airscrew-Weyroc wooden aircraft propellor for thrust. Hover height was
about 6" and top speed was about 40 mph.
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