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).
Dynamometer test results for a Phantom II vehicle with specific modifications.
| Identifier | ExFiles\Box 74\4\ scan0179 | |
| Date | 27th April 1923 | |
| AR 26 (10H BKS) (SK 165 5-10-22) MP 260796 X4134 ROLLS-ROYCE LTD. INSTRUCTIONS To: C. W. Hives Order No. Customer's No. 1 P of G II taken on road wheel dynamometer. .100" higher crown than std, throttle exhaust hotspot, no ex. heat on ind. pipe. Table Data: R.P.M | H.P | Average H.P. 500 | 11.1 | 8.9 750 | 16.0 | 13.9 1000 | 20.6 | 18.3 1500 | 24.0 | 25.9 2000 | 32.3 | 32.5 2500 | 35.0 | 35.4 2750 | 33.6 | 33.4 3000 | 31.8 Signed: Leigh This Sheet must be filed on completion of the work. | ||