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).
Best way to test different valve steels on the test bed.
| Identifier | WestWitteringFiles\S\2April1928-June1928\ Scan125 | |
| Date | 11th June 1928 | |
| HS.{Lord Ernest Hives - Chair} } FROM R.{Sir Henry Royce} BY.{R.W. Bailey - Chief Engineer} } HL. } Copy to - BJ. " - WOR.{Arthur Wormald - General Works Manager} " - E.{Mr Elliott - Chief Engineer} ORIGINAL R1/M11.6.28. VALVE STEELS. X1474 X5060 X8060 X4587 X3822 I think the nearest and quickest way to find out the best valve steel is to test valves in an engine on the test bed. I understand the steels suggested are Firth's (Nickel-Chrome-Tungsten), K.E. ditto, and present S.L.V. If they all stand I suggest that the sections of the head be made lighter until they overheat or stretch. Will HS.{Lord Ernest Hives - Chair} get this done without delay, and so dispose of a matter that is costing money in time and thought etc. R.{Sir Henry Royce} | ||