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).
Responding to a telegram about oil pressure settings for future vehicle tests.
| Identifier | ExFiles\Box 83\1\ scan0335 | |
| Date | 11th January 1937 | |
| R des Swdtt HOTEL DE FRANCE. CHATEAUROUX. Indre. France. Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IO/JAB. 11th January 1937. To. Rm.{William Robotham - Chief Engineer} 6. B. IV. We have received your telegram:- "RECOMMEND RUNNING WITH 40 LBS OIL PRESSURE IN FUTURE TESTS ON 6.B.IV." This is not very clear to us, as the oil pressure varies considerably with the speed of car. We have however, increased the oil pressure to 40 lbs. at 3,000 revs. at an oil temperature of 90°c. This I presume will cover what you require. We make a point of noting and recording oil pressures, and if any drop in oil pressure occurs with increased oil temperature, we will attend to it. ------------- Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||