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 graph charting vehicle performance data including temperatures, speed, and fuel consumption over several days.
| Identifier | ExFiles\Box 5a\2\ 02-page412 | |
| Date | 26th July 1934 | |
| Top Title: 21G IV Top Right: READINGS EVERY 25 Column Headers: AM + PM | AM MORNING | AFTERNOON | MORNING | AFTERNOON Data Table: Row 'Average Speed': 49.9 | 47 + 44.6 | 48.76 | 48.7 | 49.1 Row 'DATE': 26/7/34 | | 28/7/34 | | 29/7/34 Row 'DRIVERS': GRYLLS, PATTINSON, ROBERTS | H.G. Grylls, F.R. Hamilton | Rose, Walsh | Grylls, Hamilton | Rose, Walsh Row 'Miles': 262. 23. | 192. | 269. | 352. | 325. Graph Labels: PETROL CONS. WATER TEMP. OIL TEMP. AIR TEMP. Y-Axis Labels: 20 MPG 10 MPG 100°C, 90°C, 80°C, 70°C, 60°C, 50°C, 40°C, 30°C, 20°C, 10°C | ||