The design of a V/STOL aircraft, incorporating only one lift-cruise engine places great emphasis on the flexibility of its propulsion system to provide sufficient thrust for take-off and efficient fuel consumption for cruise. In order to attain a reasonable range with a lightweight vehicle this inconsistency of thrust and SFC mis-match must be resolved. A brief survey of engine technology predictions for the next decade indicates that future aircraft systems would be offered a wider choice of cycle characteristics, higher technology levels, and added cycle flexibility. A comparative parametric study was conducted to determine the effect of these advancements on a postulated 1983 V/STOL aircraft. In particular the effect of increasing thrust through the use of thrust lapse-rating and variable turbine geometry were compared to more conventional augmentors such as duct burning and water injection. Additionally, the effects of varying cycle characteristics to realize SFC improvements were investigated.
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ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show
March 26–30, 1972
San Francisco, California, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7981-8
PROCEEDINGS PAPER
Cycle Flexibility: It’s Impact on V/STOL Tactical Aircraft Propulsion Systems
C. A. Hoelzer,
C. A. Hoelzer
Grumman Aerospace Corp., Bethpage, NY
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R. A. Cea
R. A. Cea
Grumman Aerospace Corp., Bethpage, NY
Search for other works by this author on:
C. A. Hoelzer
Grumman Aerospace Corp., Bethpage, NY
R. A. Cea
Grumman Aerospace Corp., Bethpage, NY
Paper No:
72-GT-105, V001T01A103; 13 pages
Published Online:
April 24, 2015
Citation
Hoelzer, CA, & Cea, RA. "Cycle Flexibility: It’s Impact on V/STOL Tactical Aircraft Propulsion Systems." Proceedings of the ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show. ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show. San Francisco, California, USA. March 26–30, 1972. V001T01A103. ASME. https://doi.org/10.1115/72-GT-105
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