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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).
Engine overheating in the 40/50 HP model and proposing a test with and without a thermostat.

Identifier  ExFiles\Box 24\4\  Scan272
Date  14th November 1924
  
X 766

To Hs.{Lord Ernest Hives - Chair} from BJ.
Copies to... BJ [struck through]

BJ5/H14.11.24.

40/50 H.P. OVERHEATING.

I attach a copy of Sg{Arthur F. Sidgreaves - MD}2/BM12.11.24.

I know that you are very full up with experimental work at present, but when you are considering overheating, I think you would like to make a careful practical test with and without a thermostat.

It does seem strange that three customers in three different parts of the world should have written making this suggestion. Also, it would seem that our troubles with over-heating have increased a good deal during the last few years since thermostats have been introduced. I presume that possibly sometimes theoretically a certain result ought not to be produced, but practically, for some unknown reason, it is produced, although it is difficult to know the exact reason.

B.J.

Encl: Sg{Arthur F. Sidgreaves - MD}2/BM12.11.24.
re Thermostat.
  
  


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