ROTOR BLADE ASSEMBLY WITH HIGH PITCHING MOMENT AIRFOIL SECTION FOR A ROTARY WING AIRCRAFT
摘要
A main rotor blade assembly with a high negative pitching moment airfoil section having a pitching moment coefficient beyond (more negative than) -0.035 at Mach Numbers below 0.80 and a blade taper of 1:5 or greater.. The main rotor blade preferably limits blade torsional bending and an aft loaded tip airfoils to approximately 'no more' than that of conventional effective rotor blade designs based on conventional tip airfoil sections.
申请公布号
WO2007018772(A2)
申请公布日期
2007.02.15
申请号
WO2006US24495
申请日期
2006.06.22
申请人
SIKORSKY AIRCRAFT CORPORATION
发明人
SIKORSKY AIRCRAFT CORPORATION;MOFFITT, ROBERT, C.;DUH, JAMES, E.;BEREZIN, CHARLES