Log sheet graphing vehicle performance metrics such as temperature, speed, and petrol consumption over three days.
| Identifier | ExFiles\Box 82\2\ scan0183 | |
| Date | 14th July 1934 guessed | |
| 4 B IV READINGS EVERY 25 MILES. MORNING AFTERNOON AVERAGE SPEED. 48.- 47.7 DATE 26/9/34. 20 MPG. 10 MPG. 90°c 80°c 70°c 60°c 50°c WATER TEMP. OIL TEMP. AIR TEMP. 40°c 30°c 20°c 10°c DRIVERS ROBERTS PATTINSON. MARTINDALE ROSE. MILES. 192. 354. MORNING AFTERNOON 45.33 49.5 PETROL CON. 27/9/34. ROBERTS. PATTINSON. MARTINDALE WARD. GRYLLS. 340. 318. MORNING AFTERNOON 48.53 52.5 28/9/34. ROBERTS. PATTINSON. MARTINDALE. GRYLLS. 368. 390. | ||
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).