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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).
Temperature tests conducted in the rear of a 19-EX model with and without silencer shields.

Identifier  ExFiles\Box 11\4\  04-page101
Date  13th July 1932
  
x7941.

To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
From G.W.H.

Hotel de France,
Chateauroux,
FRANCE.

13.7.32.

19-EX.

The air temperature having dropped considerably, we again carried out the tests in the rear of the body, cut-out open, silencer shields on and off.
We still do not obtain any appreciable difference.

Herewith are the actual figures taken during the test.
-------

Temperature Tests in Rear of Body with and without silencer shields.

Cut-out Open

Running Temp. Standing Temp. Atmos.Temp.
24°C 25.75°C 18°C
24.5°C 26°C 19°C
24.25°C 26.5°C 18°C

WITH SHIELDS.

Running Temp. Standing Temp. Atmos.Temp.
25°C 27.5°C 18.5°C
26°C 28°C 18.5°C
26°C 29°C 18.5°C

WITHOUT SHIELDS.

All windows closed throughout tests.

G.W.Hancock
G.W.H.
  
  


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