Aerodynamic Characteristics of a Large-scale V/STOL Transport Model with Left and Lift-cruise Fans |
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80 knots Aerodynamic characteristics Airfoil section angle of attack angle of sideslip angles and forward average downwash characteristics with angle chord Cm MC Complete configuration complete lift-cruise fan complete tandem lift complete tandem lift-fan Concluded cruise fan angles cruise fans removed David H deg deg RPM drag coefficients effect of sideslip effect of tip-speed exit vanes exit-vane fan performance fan RPM fan thrust Figure 11 Figure 37 flap deflection forward speed four fans operating front fans operating front lift fans ft-lb horizontal tail knots deg deg Lateral characteristics left front fan lift coefficient lift fan configuration lift fans operating lift-cruise fan configuration longitudinal characteristics low aft position rear fans removed rotating cruise fan sideslip angle static lift tandem lift fan tandem lift-fan configuration total lift trim drag Trim effectiveness V/STOL TRANSPORT MODEL various tip-speed ratios wing lift