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).
Testing to resolve retard vibration on the EAC car.
| Identifier | WestWitteringFiles\L\Jan1924-March1924\ Scan56 | |
| Date | 12th July 1928 | |
| R.R. 493A (40 H) (SL 42 12-7-28). J.H., D.{John DeLooze - Company Secretary} VIBRATIONS ON OVERRUN ORIGINAL Expl. No. REF: HS.{Lord Ernest Hives - Chair}/ACC/T.24. SECRET. X9550 E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. Y634 EXPERIMENTAL REPORT. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. RO.{C. C. Rose - Export Manager} c. to A.{Mr Adams} SA. c. to EV.{Ivan Evernden - coachwork} WDR. Retard vibration. We have tested the EAC. car with the servo drum removed from the gearbox shaft. We could not appreciate any difference in the retard vibrations with this drum removed. We have also tested a stiffer coupling shaft between the engine and gearbox. This had the effect of slightly increasing the speed at which the periodic vibration came on. The shaft we tried was not as stiff as the scheme sent through by WW. When the WW. scheme is completed, we will report on it. HS.{Lord Ernest Hives - Chair} | ||