Author enumerates in non-technical language, few of many outstanding factors which give rise to difficulties, and to arguments about identification of aircraft; purpose is to shed light on underlying difficulties of problem from point of view of average spotter or anybody like him who is periodically called upon to locate and identify invisible airplane with only his ears.
Listening in dark
Aeroplane
Aeroplane ; 62 , n 1612 ; p 452
1942
Aufsatz (Zeitschrift)
Englisch
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