On September 24, 1929, demonstrations under Guggenheim Fund's direction proved conclusively that aircraft can take off and land by instruments alone; advantages of gyroscope; test plane equipped with Radio Frequency Laboratory standard aircraft receiver and vibrating reed indicator; aural type radio beacon, purposes of which was to direct incoming airplane to vicinity of field, visual type of localizer beacon to lead pilot to exact point on airdrome and ground receiving and transmitting set. (p 374, 376, 378, 380, 382, 384, 386)
Fog flying equipment
Aircraft
Aircraft ; 8 , n 9
1930
Aufsatz (Zeitschrift)
Englisch
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