Study of external dynamic flap loads on a 6 percent B-1B modelThe origin of dynamic pressure loads on external divergent engine nozzle flaps of the B-1B aircraft was investigated in the NASA/LaRC 16 foot transonic tunnel using a 6 percent full span model with powered engine nacelles. External flap dynamic loads and afterbody drag associated with flap removal were measured using this model. Both dry and max. A/B power nozzles were evaluated in this study. As a result of this study, the principal mechanisms responsible for high dynamic external flap loads were determined along with performance penalty associated with flap removal.
Document ID
19920033021
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Seiner, John M. (NASA Langley Research Center Hampton, VA, United States)
Manning, James C. (NASA Langley Research Center Hampton, VA, United States)
Capone, Francis J. (NASA Langley Research Center Hampton, VA, United States)
Pendergraft, Odis C., Jr. (NASA Langley Research Center Hampton, VA, United States)