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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).
Letter from Cadillac requesting test samples of RR50 aluminum alloys for pistons.

Identifier  ExFiles\Box 170\2\  img035
Date  27th April 1931
  
CADILLAC MOTOR CAR COMPANY
DETROIT, MICHIGAN

X.
Note by BY2/G285-31

April 27, 1931.

Mr. E.{Mr Elliott - Chief Engineer} W. Hives,
Rolls Royce, Limited,
Derby, England.

My dear Ha/Rm{William Robotham - Chief Engineer}:

Many thanks for blue prints of riding tests which arrived today. These will be very useful.

We have been talking about aluminum alloy pistons. The principal trouble here seems to be lack of a really reliable alloy, and there is talk of composite construction (from which, I feel, the Lord preserve us) and others.

Was expecting to hear of Devereux coming over and more about the R.R. 50 alloys before this time. They seem to be needed in the U.S. and we should like to see some of the alloys suitable for pistons, here.

Would it be permissible for me to ask you to send us some test samples (heat treated) of R.R. 50's in the sand, chill and diecast condition suitable for pistons?

Yours with thanks,

Maurice Olley

M.{Mr Moon / Mr Moore} Olley
fo
  
  


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