PYBBNPitch Yaw Balance Beam Nozzle (aviation; Pratt & Whitney)
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A pair of Pratt & Whitney's Pitch Yaw Balanced Beam Nozzles (PYBBN) will soon be installed on the Air Force's F-15 S/MTD aircraft with flight tests to begin this spring as part of the F-15 ACTIVE program at NASA's Dryden Flight Research Facility at Edwards AFB in California.
The program has four goals: first, to demonstrate the PYBBN system.
The PYBBN project was aimed at keeping production costs low and keeping it easy to retrofit, according to Roger Bursey, program manager of the Pitch Yaw Balanced Beam Nozzle program.