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).
RS.500 valve spring failures in a Phantom III Engine Unit No. 13.
| Identifier | ExFiles\Box 91\2\ scan0027 | |
| Date | 7th June 1937 | |
| To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} C. HPS{Horace Percy Smith - Experimental Factory Mgr} 300a Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux}4/AP.7.6.37 32.EX. Phantom III. - Engine Unit No.13. RS.{Sir Henry Royce's Secretary}500 Valve Springs. Failures were experienced on 5.6.37:- 3.B. (Exhaust No.2. cylinder B.side) 101 miles. 7.B. (Exhaust No.4. cylinder B.side) 143 miles. New RS.{Sir Henry Royce's Secretary}500 springs were fitted after each failure, by Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} The broken springs have been handed to Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} Franklin.Wallis. | ||