Measurements of Ground Effect on a Low-aspect-ratio Ogee-wing Airplane Model and Calculations of Landing-flare Trajectories
Author: Vernard E. Lockwood
Publisher:
Published: 1968
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Vernard E. Lockwood
Publisher:
Published: 1968
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul A. Baker
Publisher:
Published: 1970
Total Pages: 52
ISBN-13:
DOWNLOAD EBOOKA constant-angle-of-attack-approach technique was used to measure ground effect on several low -aspect-ratio aircraft. The flight results were compared with results from constant -altitude flybys, wind-tunnel studies, and theoretical prediction data. It was found that the constantangle-of-attack technique provided data that were consistent with data obtained from constant-altitude flybys and required fewer runs to obtain the same amount of data. The test results from an F5D-1 airplane modified with an ogee wing, a prototype F5D-1 airplane, two XB-70 airplanes, and an F-104A airplane indicate that theory and wind-tunnel results adequately predict the trends caused by ground effect as a function of height and aspect ratio. However, the magnitude of these predictions did not always agree with the flightmeasured results. In addition, there was consistent evidence that the aircraft encountered ground effect at a height above one wing span.
Author: William B. Kemp
Publisher:
Published: 1966
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKAuthor: James L. Thomas
Publisher:
Published: 1979
Total Pages: 56
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul A. Baker
Publisher:
Published: 1970
Total Pages: 46
ISBN-13:
DOWNLOAD EBOOKAuthor: Robert E. Curry
Publisher:
Published: 1997
Total Pages: 22
ISBN-13:
DOWNLOAD EBOOKAuthor: C. Thomas Snyder
Publisher:
Published: 1970
Total Pages: 60
ISBN-13:
DOWNLOAD EBOOKThe influence of ground effect on the landing flare characteristics of a supersonic transport airplane (SST) was investigated in a fixed cockpit simulator. Simulations of an ogee-modified delta-wing F5D-1 airplane and a subsonic jet transport were used for evaluating the simulator and as a reference configurations during landing comparisons. Dynamic responses of the SST to seven different ground-effect models during controls-fixed and constant-attitude descents are also presented, followed by piloted subjective assessments. A summary of ground effects on delta-like wings is included in the appendixes.
Author: Stephen Corda
Publisher:
Published: 1994
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKAuthor: Arthur W. Carter
Publisher:
Published: 1970
Total Pages: 68
ISBN-13:
DOWNLOAD EBOOKGround proximity effects of unswept aspect ratio 10 wing on longitudinal aerodynamic characteristics.