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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).
The results of testing Phantom II gearboxes with Whitmore's Compound and plans for further tests with Price's Compound.

Identifier  ExFiles\Box 15\7\  Scan147
Date  11th June 1930
  
COPY. X 7530

BY.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair} From Mx.{John H Maddocks - Chief Proving Officer}

X.4481.
X.967.
X.7310.
X.7530.

Mx{John H Maddocks - Chief Proving Officer}8/T11.6.30.

PHANTOM II GEAR BOXES.

Further to my memo MX{John H Maddocks - Chief Proving Officer}9/T30.5.30., we have run three Phantom Gear boxes with 50% of Whitmore's Compound.

These boxes were run on this mixture through Unit and Dynamometer test - in every case the condition of the gears surface was excellent.

In accordance with arrangements made with Hs.{Lord Ernest Hives - Chair} we shall now run three more boxes with a similar percentage of Price's Compound, and incidentally we are arranging to revert to Price's Compound for axle testing.

Mx.{John H Maddocks - Chief Proving Officer}
  
  


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