Performance report detailing a vehicle's water temperature, gear usage, and speed while climbing the Bernina and Fluela passes in Switzerland.
| Identifier | ExFiles\Box 56\2\ Scan029 | |
| Date | 4th July 1932 guessed | |
| -6- We continued on to the Pass Bernina. Height (m 2330) Length 31.6 kms. This Pass being in Switzerland, the cut-out had to be closed. Water Temp. Air Temp. Gears. MPH.Speed. 80°C 15°C 3rd 25 82°C 2nd passing car 82°C 3rd 88°C 2nd to pass cart. 90°C 3rd 91°C " 12 mph. 92°C " 25 90°C 2nd 28 3rd Stopped for 10 mins. by herd of cattle. 2nd 3rd. This was an easy 3rd gear pass when the road is clear. Fluela Pass. Height (m 2389) Length 19.4 kms. Water Temp. Air Temp. Gears. Speed mph. 70°C 15°C 3rd 25 - 30 78°C 3rd 80°C 2nd easy corner. 82°C 3rd 84°C 3rd 87°C 3rd 90°C 2nd following a bus for 10 mins at a speed of 10 - 12 mph; 95°C 92°C 2nd 26 mph. 91°C 89°C easy climb, road surface good, easy cornering. Upon descending this pass the radiator shutters stuck open and water temp. dropped to 30°C. This happened several times afterwards. | ||
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).