The British Gliding Association lias rightly called attention to the need for an artificial horizon suitable for use in a sailplane. This note argues that the artificial horizon, together with the directional gyro, form the ideal pair of instruments for the accurate and safe Hying of sailplanes in clouds. A description is given of a pair developed from German instruments together with full details of their weight, size and current consumption. It is shown that for a total weight of 20 lb. a sailplane can he fitted with an electrically driven horizon and directional gyro which will run continuously for over six hours before the batteries need recharging.
Yates, A.H. (1952), "An Artificial Horizon and Directional Gyro for Sailplanes: A Description of a Pair of Instruments Suitable for Sailplanes Developed from German Equipment", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 12, pp. 367-369. https://doi.org/10.1108/eb032238
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