Studying aeroplane [i.e. airplane] rudder, 1917 or 1918. Creator: Bain News Service.

Studying aeroplane [i.e. airplane] rudder, 1917 or 1918. Creator: Bain News Service.

3-010-914 - Heritage Art/Heritage Images

Studying aeroplane [i.e. airplane] rudder, 1917 or 1918. The instructor is here shown explaining the principles of lateral and horizontal control to a class of America's new airmen at one of the ground schools.

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