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).
Schemes for mounting the power unit to dampen torque reactions.
| Identifier | WestWitteringFiles\K\September1923\ Scan123 | |
| Date | 27th September 1923 | |
| R.R 235A (100 TS H.{Arthur M. Hanbury - Head Complaints} 159 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 ORIGINAL TO HS.{Lord Ernest Hives - Chair} FROM E.{Mr Elliott - Chief Engineer} S E C R E T. E2/M27.9.23. c.c. to OJ. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. RE. DAMPING TORQUE REACTIONS. X9950 It is suggested that the best scheme we have for carrying the power unit in the frame is to combine the gearbox and engine and mount the unit thus formed rigidly at the front end and by means of a single point on the back end of the gearbox, with torque damping arms opposite the end of the engine, and also the end of the gearbox, or with the rigid arms half way along the unit and single point suspension at the front end, with torque damping at the front and at the rear. The former scheme gives a cleaner design as the single point suspension is much more easily obtained on the rear end of the gearbox than on the front end of the engine. The fact that the mass of the engine is steadied on the front end of the frame may prove a blessing in reducing bonnet rattles, or on the other hand it may prove to be a disadvantage. Mr. Royce would like you to prove out these ideas. In the meantime we are proceeding with designs for the E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C., carrying out both methods of suspension and damping outlined above. E.{Mr Elliott - Chief Engineer} [Signature] | ||