Title

Prediction methods for Near Field Noise Environments of VTOL Aircraft

Date

1972

Index Abstract

Not Available

Photo Quality

Not Needed

Report Number

AFFDL TR 71-180

Creator

Sutherland, L. C.

Brown, D.

Corporate Author

Wyle Laboratories

Laboratory

Air Force Flight Dynamics Laboratory

Extent

246

Identifier

AD0900405

AD0900405

Access Rights

Distribution limited to U.S. Government agencies only

Distribution Classification

1

Contract

F33615-69-C-1407

DoD Project

1471

DoD Task

147102

DTIC Record Exists

No

Distribution Change Authority Correspondence

AFFDL LTR

Report Availability

Full text available

Date Issued

1972-05

Abstract

The abstract for this report is either unavailable or has yet to be entered

Provenance

Lockheed Martin Missiles & Fire Control

Type

report

Subject

Aircraft Noise

Vertical Takeoff Aircraft

Mathematical Prediction

Noise

Aircraft Engine Noise

Jet Engine Noise

Jet Aircraft Noise

Propeller Noise

Aerodynamic Noise

White Noise

Sonic Boom

Takeoff

Airframes

Vibration

Ground Effect

Sound Transmission

Reflectivity

Frequency

Buffeting

Rotor Blades (Rotary Wings)

Reduction

Intensity

Acoustic Properties

Shock Waves

Turbulence

Vortices

Gas Turbines

Walls

Fans

Jet Flow

Power Spectra

Lift

Blade Airfoils

Anechoic Chambers

Computer Programs

Jet Aircraft

Format

1 online resource