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• n  the axis around which the major rotor of a helicopter turns

• rotor shaft

News & Articles

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• Ken Wallis Autogyro Pioneer Dies At 97
  First time accepted submitter gb7djk writes "Wing Commander Ken Wallis the developer and promoter of small autogyros died peacefully today 4th September, aged 97, at his home in Norfolk. Ken is mainly remembered for 'Little Nellie', the tooled up autogyro that took on some helicopters in the James Bond film You Only Live Twice. He made the breakthrough discovery of the offset rotor head that ...
  Sept. 5, 2013 - Slashdot