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).
Potential engine damage from 8-cylinder period harmonics and the capabilities of torsional crankshaft dampers.
| Identifier | ExFiles\Box 25\3\ Scan329 | |
| Date | 19th March 1928 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to BJ. Wor.{Arthur Wormald - General Works Manager} c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} X634 10336 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG19.3.28. With reference to R3/M9.3.28. We do not think that it would be possible to run on the 8-cyl. period for any length of time without doing damage to the engine, if at the speed in question there was any appreciable gas torque left. On the Stutz there is not. From our experience, one load can be found on the present type torsional crankshaft damper which will deal with all the harmonics of a 6-cyl. engine but not the master period of course. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||