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).
Deflection test on a Phantom III crankshaft and the requirement for Packard-type balance weights.

Identifier  ExFiles\Box 93\5\  scan0122
Date  13th June 1936
  
To E.{Mr Elliott - Chief Engineer}

X-317

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}20/KW.13.6.36.

Packard Balance Weights for Phantom III.

The deflection test we conducted on a Phantom III crankshaft showed that the restoring couple required is 60% of the centrifugal out of balance at 15% to the line of Nos. 1 & 6 crankpins in the same rotational direction as on the Bentley.

We should like to have a shaft with this type of balance weight available for the Continental Phantom III.

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}
  
  


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