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).
Confirming a trial to incorporate valve spring dampers and delete bottom spring washers.
| Identifier | ExFiles\Box 158\4\ scan0198 | |
| Date | 7th December 1937 | |
| To By/ALD.{F. Allwood - Experimental Design} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} * 1360 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}7.12.37. VALVE SPRINGS. This memo to confirm sanction given by By.{R.W. Bailey - Chief Engineer} to have valve spring dampers incorporated for trial with the scheme ECD.76 whereby the bottom spring washers are deleted. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||