Middleton, Edgar Charles, 1894- [from old catalog] · New York, C. Scribner's sons · leaf 27
day flying altitude. We have no greatmountains in this country, but the hills tower AIRFARE sufficiently to form a continual danger to passingaircraft. No doubt in time to come such dangerspots will be topped by aerial lighthouses andbeacons. Contour, from the airmans point of view, is theimportant… … Altitude 10,0005,000 Lowest JVjr AltitudeCaTskTable Mo< EifTel Tower
Aeronautics · Aeronautics, Military
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