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).
Vehicle test conducted on Broccone Pass, detailing cooling performance over three ascents.
| Identifier | ExFiles\Box 78\3\ scan0164 | |
| Date | 10th December 1918 guessed | |
| Report on Test on Broccone Pass Road: Good surface, winding, nine wide hairpin bends. Grade varies from 7 to 10%. Length 9 miles. 2nd Gear used throughout. Weak mixture. 1st Ascent Plate off Air Temp't: Bottom 27c, Summit 12c Loss of Water: 2 1/4 lts. 2nd Ascent Plate on Air Temp't: 24c, 10c Loss of Water: 4 lts 3rd Ascent Plate on Bonnet off Air Temp't: 20c, 8c Loss of Water: No water lost Water Temp. 84c J.K. Sinclair | ||