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).
Engine reaction causing vibration and transmission rattle on the P.2 and 25HP models.
| Identifier | ExFiles\Box 138\1\ scan0032 | |
| Date | 7th May 1932 guessed | |
| and a reaction upon the engine mass, causing the whole car and frame to vibrate, as was experienced with P.2. when it sandwiched feet. It also results in a tendency to put the transmission in a state of torsional vibration and rattle, as experienced on the 25HP. R.{Sir Henry Royce} | ||