DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0917355
Title:
An Experiment in Aural Detection of Helicopters
Corporate Author:
BOEING VERTOL CO PHILADELPHIA PA
Report Date:
1973-12-01
Abstract:
The report describes a field experiment used to evaluate a theoretical method of determining helicopter aural detection distance. A test program was conducted using a light commercial helicopter, test observers, and supporting acoustic monitoring equipment. Various background ambient noise conditions were used at the observer location. Data was reduced, detection distances were obtained, and comparisons were made with theoretically predicted detection distances.
Descriptive Note:
Final rept.
Pages:
0121
Distribution Statement:
Availability: Document partially illegible.
Contract Number:
DAAJ02-71-C-0065
File Size:
4.19MB
