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).
Performance log sheet graphing vehicle temperatures, speeds, and petrol consumption over several days.
| Identifier | ExFiles\Box 5a\2\ 02-page418 | |
| Date | 13th August 1934 guessed | |
| 21 GIV READINGS EVERY 25 MILES MORNING AFTERNOON MORNING AFTERNOON MORNING MORNING AVERAGE SPEED 38 46.4 39.8 44.5 42.8 43.7 DATE 16/8/34 18/8/34 19/8/34 21/8/34 20MPG 10MPG PETROL CON. WATER TEMP. OIL TEMP. 100 90 80 70 60 50 AIR TEMP. 40% 30% 20% 10% DRIVERS ROSE PATTINSON ROSE PATTINSON PATTINSON GWH{George W. Hancock - Head Chateauroux} PATTINSON WALSH WARD WALSH WARD WARD WARD MILES 348 359 319 312 321 276 | ||