A limited flight experiment was conducted to document the ground effect characteristics of the X-29A research aircraft. This vehicle has an aerodynamic platform which includes a forward-swept wing and close-coupled, variable incidence canard. The flight-test program obtained results for errors in the air data measurement and for incremental normal force and pitching moment caused by ground effect. Correlations with wind-tunnel and computational analyses were made. The results are discussed with respect to the dynamic nature of the flight measurements, similar data from other configurations, and pilot comments. The ground effect results are necessary to obtain an accurate interpretation of the vehicle's landing characteristics. The flight data can also be used in the development of many modern aircraft systems such as autoland and piloted simulation.
An in-flight investigation of ground effect on a forward-swept wing airplane
1990-04-01
Conference paper
No indication
English
Flight Research on a Forward-Swept-Wing Airplane
NTRS | 1987
|X-29A forward-swept-wing demonstrator airplane
NTRS | 1982
|Forward swept wing flight demonstrator
AIAA | 1980
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