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).
Discrepancy in the yield stress specification for barrel steel and the potential rejection of supplied barrels.
| Identifier | ExFiles\Box 176\3\ img122 | |
| Date | 18th June 1940 | |
| YC Ve. From Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer}5/ML.18.6.40. Ve.1/CD.18.8.40. With reference to your Memo. we note what you say about the barrel steel requiring to have a minimum yield of 50 tons but on the other hand, we would point out that you have had a copy of Cgh{W Clough}/EM.8/Wt.26.6.40. in which the specification for the barrel steel is quoted as being a yield stress of 45/50 tons per sq. ins. The sixty barrels which have been supplied have been made to this specification and therefore it seems probable that some of them will have a yield of less than 50 tons. I have asked Cgh{W Clough}/EM to let me have the figures, which will be submitted to you, with a view to seeing whether any of the barrels ought to be rejected. Rm.{William Robotham - Chief Engineer} | ||