HELICOPTER ROTOR BLADE Russian patent published in 2001 - IPC

FIELD: aviation. SUBSTANCE: blade with balancing unit in tail section includes holder for balancing plates which is secured on top and bottom booms of spar and fairing. Tail section of blade spar has angular cut-out of side of nose forming outer panel including spar rear web. Balancing unit fairing is secured on holder which may be provided with web on side of balancing plate stack including unit for additional attachment of fairing, as well as unit for attachment of holder in spar outer panel. EFFECT: simplified construction; enhanced reliability of fairing attachment. 3 cl, 4 dwg