Accession Number:

AD0711910

Title:

SONAR DETECTION OF SUBMARINES BY HELICOPTER.

Descriptive Note:

Corporate Author:

NATIONAL ACADEMY OF SCIENCES-NATIONAL RESEARCH COUNCIL WASHINGTON D C COMM ON HEARING BIOACOUSTICS BIOMECHANICS

Personal Author(s):

Report Date:

1970-08-01

Pagination or Media Count:

10.0

Abstract:

The report advises the military services concerning means for improving the efficiency of the search technique of sonar operators and crew members involved in searching for submarines by means of helicopter-borne equipment. Measures are also suggested for protecting the hearing of the sonar operator and the crew of the helicopter. Author

Descriptors:

• (*AIRPLANE ENGINE NOISE
• AUDITORY SIGNALS)
• (*SONAR EQUIPMENT
• ANTISUBMARINE AIRCRAFT)
• (*HELICOPTERS
• SONAR PERSONNEL)
• HELMETS
• ATTENUATION
• ACOUSTIC FILTERS
• ACOUSTIC INSULATION
• HEARING
• THRESHOLDS(PHYSIOLOGY)
• EARPHONES
• HUMAN FACTORS ENGINEERING

Subject Categories:

• Acoustic Detection and Detectors
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE