Aerodynamic Stability and Control/Wind Tunnel Data Correlation

Item

Title
Aerodynamic Stability and Control/Wind Tunnel Data Correlation
Date
1971
Index Abstract
Coming Soon
Photo Quality
Complete
Report Number
AFFDL TR 71-3
Corporate Author
North American Rockwell Corporation
Laboratory
Air Force Flight Dynamics Laboratory
Extent
220
Identifier
AD0726103
Access Rights
This document has been approved for public release and sale; its distribution is unlimited
Distribution Classification
1
Contract
AF 33(615)-5323
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Abstract
The general objective was to collect and analyze aerodynamic stability and control data for the XV-4B, XV-5A, and P-1127 VTOL configurations. Correlation and analysis of existing model data were made to investigate hover and transition characteristics. Particular emphasis was placed on the aerodynamic power effects, sometimes referred to as interference effects. Other areas of investigation were sometimes referred to as interference effects. Other areas of investigation were nondimensional coefficients used to present VTOL data and wind tunnel test techniques. Wind tunnel tests were conducted using an inlet only model and a jet only model to investigate special test and analysis problems for these components. The agreement between different sets of XV-4B model data was, in general, found to be poor. However, the nondimensional coefficients used by Lockheed to reduce to XV-4B model data appear to be valid parameters for this category of VTOL airplane. The jet entrainment flow was shown by experiment to be the primary cause of the XV-4B power effects, and the XV-4B jet path was experimentally and theoretically determined.
Report Availability
Full text available
Date Issued
1971-05
Provenance
AFRL/VACA
Type
report
Format
1 online resource
Creator
Casteel, G. R.
Media
AFFDLTR71-003.pdf