STUDY OF THE HEAVY-LIFT HELICOPTER ROTOR CONFIGURATION
BOEING CO MORTON PA VERTOL DIV
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A two-part parametric analysis and design study was conducted to define the optimum shaft-driven rotor system for the heavy-lift helicopter. A parametric analysis was made for the tandem-lift rotor system and the single- liftantitorque rotor system mathematical models were programmed for derivation by large digital computers. The preliminary design study used the rotor geometry determined by the rotor system parametric analysis. Attention was given primarily to the articulated rotor. Study of the hingeless semirigid rotor was limited to an exploratory parametric analysis which, however, covers the areas of risk, the weight increment, and the areas worthy of further study. The preliminary design study specifically covers stall flutter, flap-lag instability, rotor hub shaking forces, and fuselage response.
- Transport Aircraft