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).
Confirming instructions for modifying a Continental Ph.III block with N.M.C. exhaust valve seats and ensuring the correct Brinell figure for 6-B-IV bearings.
| Identifier | ExFiles\Box 92\6\ scan0004 | |
| Date | 12th June 1936 | |
| X300 To Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/KW.12.6.36. This is to confirm that you will instruct one block of the Continental Ph.III to have N.M.C. exhaust valve seats, with a view to eliminating the valve seat erosion which we expect to take place with stellited valves. Also that you will ensure that the main and big end bearings for 6-B-IV have the required Brinell figure. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||