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).
Work request memo for modifications to a Phantom II cylinder head.
| Identifier | ExFiles\Box 14\3\ Scan072 | |
| Date | 13th November 1931 | |
| γ7050. To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/MJ.13.11.31. Will you please carry out the following work on (5.25:1 compression ratio) P.11 cylinder head. Valve guides removed and machined to V.1126/7. Retaining washers fitted to V.1128. Head to be erected with double valve springs, inner to E.37610, outer springs being standard P.11. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||