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EXPERIMENTAL PERFORMANCE OF A VENTRAL NOZZLE WITH PITCH AND YAW VECTORING CAPABILITY FOR SSTOVL AIRCRAFT
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English
Abstract
Aircraft with supersonic, short takeoff and vertical landing capability have been proposed to replace some of the current high-performance aircraft. Several of these configurations use a ventral nozzle in the lower fuselage, aft of the center of gravity, for lift or pitch control. Internal vanes canted at 20° were added to a swivel-type ventral nozzle and tested at tailpipe-to-ambient pressure ratios up to 5.0 on the Powered Lift Facility at NASA Lewis Research Center. The addition of sets of four or seven vanes decreased the discharge coefficient of the nozzle by at least 6 percent and did not affect the thrust coefficient. Side force produced by the nozzle with vanes was 14 percent or more of the vertical force. In addition, this side force caused only a small loss in vertical force in comparison to the nozzle without vanes. The net thrust force was 8° from the vertical for four vanes and 10.5° for seven.
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Citation
Esker, B. and McArdle, J., "EXPERIMENTAL PERFORMANCE OF A VENTRAL NOZZLE WITH PITCH AND YAW VECTORING CAPABILITY FOR SSTOVL AIRCRAFT," SAE Technical Paper 931412, 1993, https://doi.org/10.4271/931412.Also In
References
- McArdle, J.G. Smith, C.F. Experimental and Analytical Study of Close-Coupled Ventral Nozzle for ASTOVL Aircraft NASA TM-103170 1990
- McArdle, J.G. Smith, C.F. Flow Studies in Close-Coupled Ventral Nozzles for STOVL Aircraft SAE Paper 901033 1990
- Smith, C.F. McArdle, J.G. Analysis of Internal Flow in a Ventral Nozzle for STOVL Aircraft AIAA Paper 90-1899 1990
- Smith, C.F. McArdle, J.G. Analysis of Internal Flow in a Ventral Nozzle J. Propuls. Power 8 2 Mar.-Apr. 1992 530 536
- Esker, B.S. McArdle, J.G. Performance Characteristics of a One-Third-Scale, Vectorable Ventral Nozzle for SSTOVL Aircraft AIAA Paper 90-2271 1990
- McArdle, J.G. Internal Characteristics and Performance of Several Jet Deflectors at Primary-Nozzle Pressure Ratios Up To 3.0 NACA TN-4264 1958
- Esker, B.S. Perusek, G.P. Experimental Performance of Three Design Factors of Ventral Nozzles for SSTOVL Aircraft AIAA Paper 92-3789 1992