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Page discussing body and engine noises, with recommendations for sub-frame mounting and further experiments on the EAC.11.


Identifier  ExFiles\Box 67\1\  scan0086
Date  13th October 1924
  
R.R. 493A (20H) (D.A. 652 20-3-24) J.H.D.
--2--
Expl. No.
REF: Hs {Lord Ernest Hives - Chair} 5/LG13.10.24.
EXPERIMENTAL REPORT.
is fitted to this frame compared with when it is fixed solid to the chassis frame.
We are always in endless trouble on the 40/50 HP. with body noises, booms and vibrations. We recommend that the proposed covered body for EAC.11. should have a sub-frame mounting.
We also recommend that we should experiment on the EAC.11. with a means of ensuring the Camshaft turning evenly. On this engine, similar to 20 HP. and 40/50 HP., we get irritating noises and rattles unless the engine gears are kept tight in gear and all clearances reduced to a minimum.
Hs. {Lord Ernest Hives - Chair}
  
  
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).


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