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 charting petrol consumption, water, oil, and air temperatures taken every 25 miles over three days.
| Identifier | ExFiles\Box 82\2\ scan0186 | |
| Date | 6th September 1934 guessed | |
| 4 B IV. Readings Every 25 Miles. AFTERNOON. MORNING. A.M. AVERAGE SPEED. 46.6. 47.4. 45.4 DATE. 18/8/34. 19/8/34. 20/8/34 20 MPG 10 MPG PETROL CON. WATER TEMP OIL TEMP °C. 90°C. 80°C. 70°C. 60°C. 50°C. 40°C. 30°C. 20°C. 10°C. AIR TEMP DRIVERS. ROBERTS. MARTINDALE. ROBERTS. MARTINDALE. A.B.R. A.F.M. MILES. 305. 324. 174. | ||