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).
Material instability of A.C.2 and the expected production of EB.2810 Bearings from an AC6 Ring.
| Identifier | ExFiles\Box 115\3\ scan0140 | |
| Date | 8th December 1937 | |
| Rm.{William Robotham - Chief Engineer} eHS. (crossed out) cBY. (crossed out) cRHC. (crossed out) cHPS. (crossed out) cHl. (crossed out) cRm/Swdl.{Len H. Swindell} 1020 Hs{Lord Ernest Hives - Chair}/JWW.16/HM.{Capt. W. Hallam - Head Repairs} 8. 12. 37. Further to Hl's communication, 1/GS.2.12.37, please note that the statement that "A.C.2 is an unstable material" is probably relative to this Department, as it has been our experience that the metal is unstable when held molten for a period due to segregation that takes place. With regard to the AC6 Ring, we are expecting from the Tool Room this week the Die from which we shall be able to produce EB.2810 Bearings in the form of a ring without shoulders. Upon receipt of this we will commence our experiments and forward the results for tests immediately. [Signature] | ||