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The Synthesis of Ejector Lift/Vectored Thrust for STOVL
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Abstract
Some of the fundamentals of powered lift for STOL and STOVL are considered and factors are listed which add substantially to the difficulty of the design task vis-รก-vis CTOL. It is shown that the design of a powered lift aircraft represents a complex synthesis and some broad reasons are suggested for limited progress in the field since the Second World War.
This introduction serves as a context in which to consider the synthesis of Ejector Lift/Vectored Thrust (EL/VT) as it relates to a multi-role supersonic fighter aircraft. The foundations of the chordwise ejector concept are traced from early tests and reasons given for specific choices. Evolution of the EL/VT hybrid is described and synthesis of the concept is considered element by element with particular reference to factors discussed in the opening section of the paper.
A baseline EL/VT layout for the current STOVL studies is proposed, an outline of the ongoing technology program is given with particular reference to Canadian work and, finally, some of the potential benefits of an EL/VT design for supersonic STOVL are listed.
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Citation
Sully, P. and Whittley, D., "The Synthesis of Ejector Lift/Vectored Thrust for STOVL," SAE Technical Paper 872378, 1987, https://doi.org/10.4271/872378.Also In
References
- Denning, R.M. Mitchell, N.A. Critical Propulsion System Parameters for Future STOVL Combat Aircraft 42nd Annual Forum. The American Helicopter Society June 86
- Whittley, D.C. Some Experimental Research on a New Aircraft Configuration for VTOL ICAS
- Whittley D.C. Koenig, D.G. Large Scale Model Tests of a New Technology V/STOL Concept AIAA
- Whittley, D.C. Sully, P.R. Recent Canadian Developments in Powered Lift Technology; 1985 Defence Science Symposium Ottawa 1985
- Whittley, D.C. Military Developments in Aeronautics: The Next Thirty Years CASI AGM May 86
- Garland, D.B. An Update on the Ejector Lift Research Program at DHC CASI AGM May 1987
- Whittley, D.C. Gilbertson, F.L. Recent Developments in Ejector Design for V/STOL Aircraft SAE 841498