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).
Test results for a 20 HP car climbing the Col de la Faucille in Switzerland.
| Identifier | ExFiles\Box 24\4\ Scan171 | |
| Date | 22th August 1924 guessed | |
| 20 HP TESTS IN SWITZERLAND. RESULTS OF CLIMB UP COL DE LA{L. A. Archer} FAUCILLE. Conditions of test :- Dry road - surface good - corners every approx. 150 yds. - Speed on corners dropped to 22 kilometres - fairly even climb - throttle eased on most corners - Carb. mixture normal. Totally enclosed car - neither lamps or numbers cover radiator - took shutters off for test - no wind. | Air temp. | Temp. of Radiator | | Distance travelled kilomts. | Height climbed metres. | Ignition Battery. | Throttle. | Gear. | Condition of Car. | Time mins | Kilo per hr. | |---|---|---|---|---|---|---|---|---|---|---| | | Top. | Bottom. | | | | | | | | | | 16.5°C | 73°C | 65.6°C | 8,202 | 600 | full advance. | Full | 2nd. | Std. Four passengers. | 0 | | | 17 " | 72°C | 65.6°C | " | " | " | " | " | " | 1 | 35 | | 18 " | 75°C | 68.9°C | 03 | 620 | " | " | " | " | 2 | 50 | | " | 75 " | 68.9 " | " | " | " | " | " | " | 3 | 45 | | " | 76 " | 71.1 " | 04 | 690 | " | " | " | " | 4 | 40 | | 19 " | 78 " | 72.2 " | " | " | " | " | " | " | 5 | 35 | | " | 79 " | 72.8 " | " | 760 | " | " | " | " | 6 | 50 | | " | 80 " | 73.3 " | 06 | " | " | " | " | " | 7 | 30 | | 19 " | 83 " | 73.9 " | " | 820 | " | " | " | " | 8 | 35/40 | | " | 83 " | 74 " | " | " | " | " | " | " | 9 | 45 | | " | 85 " | 75 " | 08 | 880 | " | " | " | " | 10 | 45/48 | | 18.5 " | 85 " | 77.8 " | " | " | " | " | " | " | 11 | 40 | | " | 85 " | 77.8 " | " | 940 | " | " | " | " | 12 | 35 | | " | 86 " | 80.6 " | 09 | " | " | " | " | " | 13 | 20 | | 16 " | 86 " | 80.6 " | " | 1000 | " | " | " | " | 14 | 25 | | " | 86 " | 80.6 " | " | " | " | " | " | " | 15 | 25 | | " | 85.5 " | 80 " | 10 | 1080 | " | " | " | " | 16 | 32 | | 11.5 " | 86 " | 80 " | " | " | " | " | " | " | 17 | 40 | | " | 86 " | 80 " | " | 1190 | " | " | " | " | 18 | 32 | | " | 86 " | 80 " | " | " | " | " | " | " | 19 | 35 | | 12 " | 86 " | 80 " | 8,213 | 1220 | " | " | " | " | 19 10 SECS. | 35 | | ||