Abstract
and Douglas L. Bowers** Air Force Wright Aeronautical Laboratories Wright-Patterson AFB, Ohio 45433 The Advanced Nozzle Concepts (ANC) program helped define the role of advanced exhaust nozzles in the design of future tactical fighters. An extensive analytical/experimental program was conducted, covering advanced axisymmetric and twodimensional (2-D) nozzles installed in air-to-air and air-to-surface tactical fighter configurations of generically different design. In the air-toair Hoyt study, testing was accomplished on several air-to-air nozzle/vehicle configurations from Mach 0.6 to 1.5 to define relative installation drags and aerodynamic interaction effects due to thrust vectoring and reversing. It was shown that for an air combat fighter, reversing for STOL capability and vectoring for trim benefits at high lift coefficients can be achieved for only a small penalty in takeoff gross weight.
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