Accession Number:

AD0773385

Title:

Research on Helicopter Noise.

Descriptive Note:

Final rept. 25 Jun 70-1 Oct 73,

Corporate Author:

CORNELL UNIV ITHACA N Y

Personal Author(s):

• Sears,William R.

Report Date:

1974-01-01

Pagination or Media Count:

7.0

Abstract:

The report summarizes research on helicopter noise under the following headings Broadband noise high-speed blade slap and noise related to blade accelerations.

Descriptors:

• *HELICOPTERS
• *NOISE(SOUND)
• *AERODYNAMIC NOISE
• BROADBAND
• PROPELLER BLADES
• IMPACT
• ACCELERATION
• TURBULENCE

Subject Categories:

• Aerodynamics
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE