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).
Temperature test results for a 'Silver Phantom' chassis during a hill climb on Amulree Hill.
| Identifier | ExFiles\Box 78\3\ scan0008 | |
| Date | 21th September 1909 | |
| R.R. 148 (20 H) (F 148. 17.6.09.) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 103. X496 3500 Temperature Tests. Taken by Wallis on Chassis 1106 ("Silver Phantom") on Amulree Hill, N.B. 21.9.09. 26-T Axle. LOUVRED BONNET Table: Gear used | Temp: water C | Temp. floorboards C --- | --- | --- 2nd & 3rd | Foot of hill 64° | 41° Time 3'25" | Top 69° | 42° 2nd gear up to 35 m.p.h. | Foot 64° | 46° Time 2'13".5 | Top 74° | 42° * 3rd gear as much as possible. no time taken | Foot 63° | 44° | Top 74° | 47° * Car stopped twice on hill. Atmospheric temp = 10°C Q 27.9.09 | ||