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).
And comparing the engine mounting and vibration insulation of models Phantom I and P.2.
| Identifier | ExFiles\Box 102\2\ scan0018 | |
| Date | 20th March 1931 guessed | |
| (4) I do so also believe that if P.1. is better than P.2. it is entirely in the better engine mounting of P.1. for vibration insulation, and it is quite within reach to put an equally good one on P. 2. by simply softer rubber under the feet. Do not mind changing power units or bodies. spend some money and get some definite answers. I cannot believe the job is as mysterious to deal with as reports would suggest. Everybody including myself are getting irritable and nervy on the damnable topic. R.{Sir Henry Royce} | ||