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).
Letter discussing engine B.HP for the 1913 car, with handwritten notes comparing the hill-climbing performance of car '1601' to the 'Silver Phantom'.
| Identifier | ExFiles\Box 19\7\ Scan011 | |
| Date | 1st October 1910 | |
| 235A (100H) (F 355. 18.8.10) E.P. 7252. C.J. (2) 1st October 1910 not find any material advantage. Our B.H.P. was not accurately measured, otherwise I feel certain it would have been found to be very good. More on this subject when we meet and discuss 1913 car. Yours sincerely, F.H.R. aog [Handwritten Note] FHR Wallis & I think that 1601 does not ascend the hill at this hotel as well as Silver Phantom did with 26 teeth. Generally the engine at a certain low revolution appears to be very lacking in power! [Handwritten Note Sideways] Has the new engine been tested for power at low revs? 5/10/10 | ||