EVALUATION OF THE PRIMARY FLIGHT HELMET, DEVICE 12-BK-6 (IMPACT-AUDIBLE SIGNAL SYSTEM FOR FLIGHT TRAINING).
KENYON COLL GAMBIER OHIO
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Ten tests were made of the Impact-Audible Signal System, Primary Flight Helmet Device 12-BK-6 PFH. In general, it was found to be unsatisfactory.
- Humanities and History
- Voice Communications