Accession Number:

ADA281444

Title:

Pressure Measurements on an F/A-18 Twin Vertical Tail in Buffeting Flow. Volume 3. Buffet Power Spectral Densities

Descriptive Note:

Final rept. 1 Apr 1993-1 Aug 1994

Corporate Author:

WRIGHT LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Pettit, Chris
• Brown, Dansen
• Banford, Michael
• Pendleton, Ed

Report Date:

1994-08-01

Pagination or Media Count:

710.0

Abstract:

Buffeting pressure measurements were made on the vertical tail surface of a full scale FA-18 aircraft model in the National Full Scale Aerodynamics Complex at NASA Ames Research Center. Test variables included aircraft angle-of-attack, aircraft sideslip angle, and dynamic pressure. Accelerometers were used to obtain vertical tail accelerations. Pressure transducers were mounted on the starboard vertical tail. Steady and unsteady pressures were obtained. Unsteady pressure data were reduced to PSD and CSD forms. Both steady and unsteady RMS pressure coefficients are also presented. Volume 1 contains the general description of the model, the test program, and highlights of the reduced data. Volume 2 contains steady and unsteady RMS data. Volume 3 contains unsteady PSD results. Volume 4 contains unsteady CSD results. Unsteady aerodynamics, Buffeting flow, Pressure measurements, Wind tunnel tests, Experimental data, Pressure transducers.

Descriptors:

• *FIGHTER AIRCRAFT
• *PRESSURE TRANSDUCERS
• *TURBULENT FLOW
• *AERODYNAMIC CONTROL SURFACES
• *BUFFETING
• TEST AND EVALUATION
• EXPERIMENTAL DATA
• ANGLE OF ATTACK
• ATTACK AIRCRAFT
• SIDESLIP
• TAILS(AIRCRAFT)
• AERODYNAMICS
• WIND TUNNELS
• DYNAMIC PRESSURE
• AIRCRAFT MODELS
• WINGS
• UNSTEADY FLOW
• TRANSDUCERS
• WIND TUNNEL TESTS
• SURFACES
• POWER SPECTRA
• ACCELERATION
• MODELS
• ACCELEROMETERS

Subject Categories:

• Aerodynamics
• Attack and Fighter Aircraft
• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE