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).
Graph plotting RPM against British Thermal Units per minute transferred to oil and oil flow through bearings for a Bentley Unit C.10.
| Identifier | ExFiles\Box 131\1\ scan0111 | |
| Date | 16th June 1933 guessed | |
| B.TH.US/ MIN TO OIL, LESS RADIATION, CURVE III., BENTLEY UNIT C.10, C/R 6.5-1, WHITE METAL BEARINGS, R.{Sir Henry Royce} P. M.{Mr Moon / Mr Moore}, 3500, 3750, 4000, 4250, 0, 100, 200, 300, 400, 500, OIL FLOW, B.TH.U'S / MIN, OIL FLOW THROUGH BEARINGS, GALS / MIN, 1, 2, 3 | ||