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 chart logging vehicle performance metrics including speed, consumption and temperatures over three days.
| Identifier | ExFiles\Box 82\2\ scan0182 | |
| Date | 14th July 1934 guessed | |
| 4 B IV. READINGS EVERY 25 MILES COLUMN 1: MORNING. AFTERNOON. AVERAGE SPEED 46.92 48.7 DATE. 23/9/34. DRIVERS ROBERTS. MARTINDALE. Miles. 344. COLUMN 2: MORNING. AFTERNOON. AVERAGE SPEED 47.24 47.0 DATE. 24/9/34. DRIVERS PATTINSON. ROSE. Miles. 370. COLUMN 3: MORNING. AFTERNOON. AVERAGE SPEED 43.85 49.3 DATE. 25/9/34. DRIVERS ROBERTS. MARTINDALE. Miles. 311. COLUMN 4: MORNING. AFTERNOON. AVERAGE SPEED [No Data] DATE. [No Data] DRIVERS PATTINSON. ROSE. Miles. 329. COLUMN 5: MORNING. AFTERNOON. AVERAGE SPEED [No Data] DATE. [No Data] DRIVERS ROBERTS. MARTINDALE. Miles. 285. COLUMN 6: MORNING. AFTERNOON. AVERAGE SPEED [No Data] DATE. [No Data] DRIVERS PATTINSON. ROSE. Miles. 362. GRAPH LABELS: PETROL CON. 20 M.P.G. 10 M.P.G. WATER TEMP. OIL TEMP. 100°C 90°C 80°C 70°C 60°C 50°C AIR TEMP. 40°C 30°C 20°C 10°C | ||