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).
Detonation issues with uncooled valves, requesting high priority for the creation of cooled exhaust valves for a single-cylinder unit.
| Identifier | ExFiles\Box 133\1\ scan0179 | |
| Date | 17th March 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} 1129. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}5/AP.17.3.37. CHASSIS S/C. UNIT. We find that the valves RS.{Sir Henry Royce's Secretary}340 are strengthened up from Ex.17162, which is an uncooled valve. We are experiencing some trouble with detonation, and are anxious to try a cooled valves as soon as possible, and we should be glad, therefore, if you would have two exhaust valves made to SCT.55. herewith. This job should be given maximum priority over all other chassis single cylinder work. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||