Questioning the standardisation of pistons made in RR.50 alloy without a 10,000-mile test.
| Identifier | ExFiles\Box 15\3\ Scan046 | |
| Date | 29th September 1930 | |
| H S Y7040. To Hs. {Lord Ernest Hives - Chair} from Sg. {Arthur F. Sidgreaves - MD} re Pistons made in RR.50 Alloy. Sg {Arthur F. Sidgreaves - MD} 32/E29.9.30 X)040 x5040 Copy to Wor. {Arthur Wormald - General Works Manager} I have just seen Standardisation Sheet X.No.7040/5040 dated the 4.9.30 in respect of the adoption of the above for both the Phantom and 20/25 chassis. EP {G. Eric Platford - Chief Quality Engineer} , I see, has said against his signature that he assumes a 10,000 miles test has been made and that it was OK. PN {Mr Northey} mentions that there does not seem to be any indication as to on what grounds the change is suggested. I gather that a 10,000 mile test has not been made as there is no reference to it on the sheet, and before agreeing to its standardisation, I should like to know what experience we have of this metal when used for pistons in our cars - in other words why has it been suggested that in this case we can depart from our usual procedure. Sg. {Arthur F. Sidgreaves - MD} [STAMP: RECEIVED SEP 30 1930 H~] | ||
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).