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).
With graphs showing oil consumption on the Silver Ghost model versus oil pressure and oil flow rates.
| Identifier | ExFiles\Box 66\1\ scan0079 | |
| Date | 12th August 1925 | |
| R.{Sir Henry Royce} 498A (50 H) (D.D. 31, 12-8-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF Hw/ACL/LG151225 SKETCH 18 Graph 1: Title: OIL CONSUMPTION ON SILVER GHOST WITH VARIOUS OIL PRESSURES. RESULTS FROM ROAD TESTS. Subtitle: AVERAGE SPEED 34 M.P.H. Y-axis: CONSUMPTION MILES/GALLON. X-axis: OIL PRESSURE. lbs/□" Labels: DIA.1. , CAR.S.Ex. The same results are given below on an oil flow base which illustrates this point. It should be mentioned here that in order to get a true comparison and avoid complications, the extra oil feed to the cyls. of the Silver Ghost was disconnected. SKETCH 19 Graph 2: Title: OIL CONSUMPTION WITH INCREASING OIL FLOW THROUGH BEARINGS. SILVER GHOST ROAD TESTS. Subtitle: AVERAGE SPEED 34. M.P.H. Y-axis: CONSUMPTION MILES/GALL. X-axis: OIL FLOW PINTS PER. MIN. Labels: DIA 2. , CAR.S.Ex. | ||