azimuth were made on the aeroplanes and the altitudescomputed from the observations. The observers at the ends ofthis base line were connected by a telephone line so that thereadings should be simultaneous. At Hammondsport the methodof simultaneous readings of azimuth and altitude from both endsof… … riG. 2 BAROGRAPH STRAPPED TO AEROPI.ANE. 422 AIRCRAFT Febrimry, ipii
Aeronautics
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