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 of water and air temperature readings taken every 50 miles over several days.
| Identifier | ExFiles\Box 24\5\ Scan297 | |
| Date | 13th July 1930 | |
| 24:- Ex. WATER & Air TEMPERATURE READINGS EVERY 50 MILES. 13-7-30 14-7-30 15-7-30 16-7-30 MORNING SHIFT AFTERNOON SHIFT. MORNING SHIFT. MORNING SHIFT. AFTERNOON SHIFT MORNING SHIFT. TOP WATER TEMPERATURE. BOTTOM WATER TEMPERATURE. 100 98 96 94 92 90 88 86 84 82 80 78 76 74 72 70 68 66 64 62 60 AIR TEMPERATURE 30 28 26 24 22 20 18 16 14 12 10 | ||