The Aeronautical Journal: Volume 13 -

III. On the Action of Aerial Propellers and Aeroplanes
H. C. Vogt
Published online by Cambridge University Press:

24 August 2017, pp. 23-27
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During the years 1883-1886 different launches here were driven by aërial propellers or revolving sails, and the intention was a simultaneous utilisation of wind and steam power, nearly 80 per cent, of the wind directions being utilised, when sailing in a circular course. It was found that the efficiency of an aërial propeller, when correctly constructed, is a trifle superior (on account of the elasticity of the air) to that of a water propeller; at present, therefore, where the aerial propeller has come into practical use for driving aeroplanes its theory may perhaps attract attention.

The Aeronautical Journal