Propeller slipstream effect on pitching static margin of airplane and optimization of horizontal tail

YAN Wencheng; JIN Hua; JIANG Yubiao; LIAN Zhenzeng; ZHANG Hui

doi:10.11729/syltlx20200075

Volume 35 Issue 5

Nov. 2021

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YAN W C，JIN H，JIANG Y B，et al. Propeller slipstream effect on pitching static margin of airplane and optimization of horizontal tail[J]. Journal of Experiments in Fluid Mechanics, 2021，35（5）：75-80. doi: 10.11729/syltlx20200075

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Propeller slipstream effect on pitching static margin of airplane and optimization of horizontal tail

doi: 10.11729/syltlx20200075

Low Speed Aerodynamics Institute of China Aerodynamics Research and Development Centre, Mianyang Sichuan　621000, China

Received Date: 2020-09-19
Rev Recd Date: 2021-03-12

Available Online: 2021-11-15

Publish Date: 2021-11-05

Abstract

Abstract

Propeller slipstream has an important effect on the airplane's aerodynamic characteristics. The wind tunnel test indicates that under the condition of large pulling force, the airplane under study has longitudinal static instability at small angle of attack which affects the safety of aviation seriously. The test research on slipstream shows that the longitudinal static instability at small angle of attack is mainly caused by the horizontal tail doing the traverse progress in the slipstream, which induces the horizontal tail's efficiency to change obviously. With the layout characteristics under consideration, it is advised to reduce the height of the horizontal tail to reduce the power's adverse effects. The test proves that reducing the height of the horizontal tail can improve the longitudinal static margin at small angle of attack obviously, and enlarging the range of the longitudinal static stability.
- wind tunnel test,
- propeller slipstream,
- takeoff and landing,
- pitching static margin,
- horizontal tail

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References(17)

References

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