Accession Number:

ADA063711

Title:

Interactional Aerodynamics of the Single Rotor Helicopter Configuration, Volume IV-A. One-Third Octave Band Spectrograms of Wake Split-Film Data, Buildup to Baseline.

Descriptive Note:

Final rept. 15 Mar 77-13 Feb 78,

Corporate Author:

BOEING VERTOL CO PHILADELPHIA PA

Personal Author(s):

• Sheridan,Philip F.

Report Date:

1978-09-01

Pagination or Media Count:

213.0

Abstract:

This is the first of the seven sub-volumes of Volume IV containing one-third octave band spectrographs of the model helicopter hubrotor wake as it was modified by various aerodynamic devices. This sub-volume deals with the wake changes as the model is built up to the baseline configuration. Author

Descriptors:

• *AERODYNAMIC CONFIGURATIONS
• *HELICOPTER ROTORS
• *HELICOPTERS
• *AERODYNAMIC LOADING
• *WAKE
• PRESSURE TRANSDUCERS
• INTERACTIONS
• FREQUENCY BANDS
• FLOW FIELDS
• HUBS
• BANDWIDTH
• TRANSPORT AIRCRAFT
• PRESSURE DISTRIBUTION
• TACTICAL AIRCRAFT
• AIR EJECTORS
• UTILITY AIRCRAFT
• SPECTROGRAPHS
• TAILS(AIRCRAFT)
• FAIRINGS
• ENGINE NACELLES

Subject Categories:

• Helicopters
• Transport Aircraft
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE