Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specifications for the 'Condor' single epicyclic gear, including tooth counts and gear ratio.

Identifier  ExFiles\Box 38\6\  Scan120
Date  29th November 1918
  
X.3389 X.3254. 29.11.18.


"CONDOR" SINGLE EPICYCLIC GEAR
(.6667 ratio).
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No. of teeth on annulus = 96
No. " " " planet = 24
" " " " Sun = 48.

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