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).
Oil pressure readings from Mr Lappin's car (B.117.JY) prior to engine dismantling.
| Identifier | ExFiles\Box 131\2\ scan0056 | |
| Date | 21th September 1937 | |
| To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} 1113 Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}19/N.21.9.37. Re: Mr Lappin's car - B.117.JY. We have received the above car, and before dismantling the engine, have tried it on the road. The engine was very smooth throughout the range, the Oil Pressure was: 38 lbs - 70 m.p.h. hot 35 " - 60 m.p.h. idling hot 7 " - rose to 15 lbs as oil cooled down. All measurements will be carefully checked when the engine is taken out. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||