A main rotor blade incorporating a rotor blade tip region having a tip chord and a tip taper such that the ratio of the main rotor blade chord to the tip chord is approximately 0.30. The tip taper ratio preferably providing an approximately 28% area of reduction in said outer 10% of said blade span. The tip region preferably further including a hover optimized high lift airfoil and a tip sweep that reaches a constant value of approximately 30 degrees along the quarter chord line.
申请公布号
US2007212223(A1)
申请公布日期
2007.09.13
申请号
US20060370407
申请日期
2006.03.08
申请人
SIKORSKY AIRCRAFT CORPORATION
发明人
MOFFITT ROBERT C.;EGOLF THOMAS A.;BEATTY ROBERT D.;KARPOWICH JOHN K.;BAGAI ASHISH