Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 174
dulum. the mind of the aviator from such mental disturb-ance. Some device in the line of a wind-shieldwould be a real boon, for even in the best weatherthere is the ceaseless rush of air into ones face at45 to 50 miles an hour. The endurance of this forhours is of itself a tax upon the most…
Aeronautics
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