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Study of aerodynamic technology for VSTOL fighter/attack aircraft, phase 1A conceptual design study was performed of a vertical attitude takeoff and landing (VATOL) fighter/attack aircraft. The configuration has a close-coupled canard-delta wing, side two-dimensional ramp inlets, and two augmented turbofan engines with thrust vectoring capability. Performance and sensitivities to objective requirements were calculated. Aerodynamic characteristics were estimated based on contractor and NASA wind tunnel data. Computer simulations of VATOL transitions were performed. Successful transitions can be made, even with series post-stall instabilities, if reaction controls are properly phased. Principal aerodynamic uncertainties identified were post-stall aerodynamics, transonic aerodynamics with thrust vectoring and inlet performance in VATOL transition. A wind tunnel research program was recommended to resolve the aerodynamic uncertainties.
Document ID
19790001857
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Driggers, H. H.
(Vought Corp. Dallas, TX, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
REPT-2-31200/8CR-79
NASA-CR-152132
Report Number: REPT-2-31200/8CR-79
Report Number: NASA-CR-152132
Accession Number
79N10028
Funding Number(s)
PROJECT: RTOP 505-10-31
CONTRACT_GRANT: NAS2-9772
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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