Examples of Static Aeroelastic Effects on Present Combat Aircraft Projects,
BRITISH AEROSPACE PLC WARTON (UNITED KINGDOM) AERODYNAMICS DEPT
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The paper first describes results of static aeroelastic calculations for a recent canardcranked delta fighter project, in which a complete aircraft aerodynamic and structural model is used to demonstrate full-interacted free aircraft deflection modes and resulting stability effects. The significance of these results is illustrated by comparison with corresponding fixed root calculations, thereby indicating a requirement for complete aircraft aeroelastic modelling at the earliest possible stage in project design. Aeroelastic modelling of external stores in the context of storeaircraft integration is also discussed. Finally, the correction of high-speed wind-tunnel model results for aeroelastic distortion is addressed, indicating those parameters which are likely to be significantly affected.