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).
The wrong, over-stressed valve springs being fitted to the Phantom III on the production line.
| Identifier | ExFiles\Box 96\2\ scan0115 | |
| Date | 8th June 1936 | |
| x357 To By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}14/KW.8.6.36. Phantom III Valve Springs. We have got the wrong valve springs on the Ph.III on production. When we changed back from the thick stem to the thin stem exhaust valves, the matter was discussed verbally and the change carried out, but the valve springs were not altered at the same time. I am afraid there is no alternative but to change all springs, as the ones at present being fitted are over-stressed and of course have never been run in France. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Att: Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}15/KW.8.6.36. | ||