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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).
Successful 1000-mile test of honed cylinders on a Phantom car and their proposed use in standard production.

Identifier  ExFiles\Box 65\4\  scan0370
Date  22th September 1927
  
To Wor.{Arthur Wormald - General Works Manager} from Hs.{Lord Ernest Hives - Chair}
c. to BY.{R.W. Bailey - Chief Engineer} Hy.{Tom Haldenby - Plant Engineer}
c. to Mx.{John H Maddocks - Chief Proving Officer}

X.8050

HONED CYLINDERS FOR KAK PHANTOM.
X.8050

We have run a set of honed cyls. for 1000 miles on a Phantom car - they are perfectly satisfactory.

We see no reason why these cylinders should not be used as standard on production.

Mx.{John H Maddocks - Chief Proving Officer} has pointed out that on the latest Phantom engines they have the appearance of having less oil on the cyls.

BY.{R.W. Bailey - Chief Engineer} has arranged that a dozen engines will be built up with honed cyls. of the latest type using standard shaped rings in place of the 'L' shaped rings for scraping oil. If we can get away from the 'L' rings it would be a definite saving.

Hs.{Lord Ernest Hives - Chair}
  
  


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