The Lockheed YF-12 aircraft uses a blow-in door ejector nozzle, which consists of a variable area, primary nozzle mounted on the afterburner of a Pratt & Whitney Aircraft J58 engine and blow-in doors, a convergent-divergent spool piece, and variable exit area free-floating flaps integrated into a Lockheed YF-12 airframe. Performance data from cold-flow, wind tunnel models and hot-flow, static stand models were correlated and compared with actual flight test data. It was found that these data showed agreement when both internal thermodynamic and external aerodynamic effects were considered.
J58/YF-12 Ejector Nozzle Performance
Sae Technical Papers
Aerospace Engineering and Manufacturing Meeting ; 1974
1974-02-01
Aufsatz (Konferenz)
Englisch
Flaps , Thermodynamics , Flight tests , Aerodynamics , Doors , Aircraft , Nozzles , Airframes , Wind tunnel tests
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