HELICOPTER MAIN ROTOR BLADE Russian patent published in 1999 - IPC

Abstract SU 1564917 A1

FIELD: aeronautical engineering; helicopter main rotor blades. SUBSTANCE: blade includes spar 1, tail section and mass balance device made in form of housing 4 with balancing weights 5. Recesses provided on upper and lower webs of spar 1 are used for placing housing 4 between them. Housing 4 is secured to spar webs by means of screws 10 and 11 having taper heads received by holes in metal cover plates 12 and 13. EFFECT: enhanced reliability due to smooth distribution of load from balancing weights on spar. 4 dwg

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SU 1 564 917 A1

Authors

Bondarenko V.S.

Doroshenko N.I.

Kirjukhin A.I.

Popov S.M.

Dates

1999-03-10—Published

1988-02-04—Filed