Propellor-driven Motorcycles

Gallery opened: 30 Nov 2018

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It is explained on the propellor car page that a propellor is very inefficient at low speeds. This did not (if they knew it) deter the constructors of these machines. The impracticability is obvious.


PROPELLOR-DRIVEN MOTORCYCLES

Left: The Anzani propellor cycle: 1906.

Anzani were a well-known maker of aircraft engines, so putting a tractor propellor on an adapted bicycle was presumably a logical move for them. This machine may have been intended for propellor testing or as a promotion for Anzani engines, as surely no could have thought this was a practical vehicle for use in busy streets...

Left: The Anzani propellor cycle: 1906.

This is a rather better picture of the Anzani bicycle. The engine appears to be a V-2, driving the propellor by belt and pulleys that give a speed reduction.


Left: The Fanbike: 2003

A more recent propellor-driven cycle, with a shrouded pusher propellor this time. Built by John Wiltbank.

Note the two extra little wheels at the back, which stop the weight of the engine pulling the bicycle over backwards. Not an elegant solution.


Left: The Thrustpac: 2006

The Thrustpac is a ducted fan driven by a small IC engine. It is intended to provide power on bicycles, canoes, skis etc.

The Thrustpac is manufactured by a company called Pacific Wind. Seems like a well thought-out product.

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