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).
Enquiry from the Vienna branch regarding the high temperature of the cooling system and a request for the normal operating temperature in Celsius.
| Identifier | ExFiles\Box 24\4\ Scan014 | |
| Date | 3rd June 1914 | |
| E.W. 255a (150 H) W.W. 315. 21-5-14) C. 0570. C O P Y. Automobiles Rolls-Royce Vienna. 1., Tegetthoffstrasse 4. V/2926. Re Cooling System. D 3/6/14. The high temperature of our cooling water is often criticised by clients and people making enquiries. Our mechanic Lauro informs us that the normal temperature of the Rolls-Royce cooling system is very high and that the engines are not overheated. Will you therefore let us know, at what temperature the water at the top of the radiator should be, when a car is running under average conditions. Please give the Celsius reckoning. Yours faithfully, Mac.{Mr Macintosh} (Sgd.) F.M. [Handwritten on left margin] 4766 | ||