A comprehensive rotorcraft analysis model, CAMRAD, was used to predict blade aerodynamic and structural loads and performance for comparison with flight test data. The data were obtained from an SA349/2 helicopter with an advanced geometry rotor. Sensitivity of the correlation to wake geometry, blade dynamics, and blade aerodynamic effects was investigated. Blade chordwise pressure coefficients were predicted for the transonic regimes near the blade tip using the model coupled with two finite-difference codes.
Correlation of SA349/2 Helicopter Flight Test Data with a Comprehensive Rotorcraft Model
European Rotorcraft ; 1986 ; Garmisch-Partenkirchen, Germany
1988-04-01
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Englisch