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).
Hand-drawn performance graph tracking vehicle metrics such as speed, fuel consumption, and temperatures over several days.
| Identifier | ExFiles\Box 82\2\ scan0185 | |
| Date | 2nd August 1934 | |
| 4 B IV. READINGS EVERY 25 MILES. MORNING. AFTERNOON. A.M. MORNING. MORNING. A.M. AM+PM. AM+PM. MORNING. AVERAGE SPEED. 48.-- 50.05 49.6 48.5 46.0 38.6 45.3 44.3 43.9 DATE. 2/8/34 3/8/34 8/8/34 9/8/34 10/8/34 11/8/34 14/8/34 18/8/34 20 MPG 10 MPG PETROL CON. WATER TEMP. OIL TEMP. °C 90°C 80°C 70°C 60°C 50°C AIR TEMP. 40°C 30°C 20°C 10°C DRIVERS PATTINSON. ROBERTS P.P. Roberts ROBERTS ABR.{A. B. Roberts} G.W.H. G.W.H. BOWERING. WARDL. MARTINDALE C.W. Martindale MARTINDALE AM. A.B.R. A.B.R. HAMILTON. MILES 360. 146. 153. 194. 322. 87. 177. 166. 311 | ||