The report contains information on the ground environment produced by STOVL propulsion systems. Data on impingement flow fields, heat transfer rates of impinging jets, and STOVL fighter exhaust characteristics are included. An analysis method was developed by UTC to estimate STOVL ground environments. Ground environments were estimated for the AV-8, Remote Augmented Lift (RAL), Remote Exhaust (REX), Hybrid Fan Vectored Thrust (HFVT), ejector augmentor, and lift plus lift/cruise propulsion systems. The effect of these ground environments on aluminum plates, asphalt concrete, Portland Cement Concrete (PCC), and steel plates was estimated. Facilities capable of conducting ground environment test were identified. Keywords: Short takeoff aircraft, Vertical takeoff aircraft. (sdw)


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