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).
Laboratory report discussing die-cast piston materials and urging tests on new types of valve steel.
| Identifier | ExFiles\Box 66\1\ scan0165 | |
| Date | 1st February 1928 | |
| HL. BY.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. Wor.{Arthur Wormald - General Works Manager} 48040 R2/M6. 2. 28. LABORATORY REPORT. X.4004 X.8040 X.3616 X.4537 I quite agree with pushing forward die cast piston in our T.50 alloy. In car work we cannot afford to use 'Y' metal forged and machined piston, unless it is absolutely necessary. In aero work we must have the best, which we ought to struggle hard to find regardless of cost. Owing to the failure of a Condor valve it would seem increasingly urgent to push forward the tests of the Austenite (Firth's latest alloy, chrome nickel I believe) type of valve steel. I should like to hear of more tests of the Stanton Izod, and Upton Lewis types. These seem the types to save failures, together with the yield point at working temperatures. R.{Sir Henry Royce} | ||