Need for a propeller shaft damper for the Wraith transmission.
| Identifier | ExFiles\Box 156\4\ scan0055 | |
| Date | 8th December 1936 | |
| E. {Mr Elliott - Chief Engineer} from Rm {William Robotham - Chief Engineer} /Smth. c. Da. {Bernard Day - Chassis Design} c. Hdy. {William Hardy} LOGG 1330 Rm {William Robotham - Chief Engineer} /Smth2/R.8.12.36. WRAITH TRANSMISSION. From our experience of 25/30 and Bentley, it appears that with transmissions proportioned as ours are now, a propeller shaft damper is necessary to reduce rear axle groans on the over-run and clutch jaggers and throw-out rattles. We are hopeful that if we stiffen up the axle shafts, a propeller shaft will not be needed, and are experimenting on this point, but in the meantime we think we ought to make provision for one on Wraith. Rm {William Robotham - Chief Engineer} /Smth. | ||
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).