Dynamic stability derivatives of a jet transport configuration with high thrust-weight ratio and an externally blown jet flap /
by Sue B. Grafton, Lysle P. Parlett, and Charles C. Smith, Jr.

Description

Main Author

Grafton, Sue B.

Related Names

Smith, Charles C., Jr.
Parlett, Lysle P.
United States. National Aeronautics and Space Administration.
Langley Research Center.

Language(s)

English

Published

Washington, D.C. : National Aeronautics and Space Administration ; 1971.

Subjects

Jet transports.
Fighter planes.
Stability of airplanes.

Summary

The investigation was conducted to determine the dynamic stability derivatives of an externally blown jet-flap transport configuration having clustered inboard pod-mounted engines and full-span triple-slotted flaps. The results showed that the model had positive damping in pitch, roll, and yaw up to the stall angle of attack. The application of power resulted in an increase in pitch damping at high angles of attack and a moderate increase in yaw damping for the higher flap deflections but had no consistent effects on roll damping. For a given level of total engine thrust, the damping derivatives were generally not affected by frequency or by having one engine inoperative.

Note

Prepared at Langley Research Center.
N71-35213.
Cover title.

Physical Description

81 p. : diagrs. ; 27 cm.

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