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 plans for an endurance test on a B.60 engine unit, detailing required modified parts.
| Identifier | ExFiles\Box 159\5\ scan0109 | |
| Date | 17th December 1940 | |
| 1373 To Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} from Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer}2/ET.17.12.40. ENDURANCE TEST ON B.60 UNIT. ------------------------- Confirming our conversation of the other day, we want to run an endurance test on a B.60 engine when we have sufficient modified pieces available to make the test worth while. Some of the pieces mentioned were lighter pistons, tri-metal big end bearings, aluminium cam wheel, tin plated piston rings, fully salt cooled exhaust valves, flush top pistons, large diameter tri-metal main bearings, soft crankshaft (if available). Incidentally, with regard to the 3 1/4 bore pistons you have ordered, will you please make sure that the ring tension is adequate since we do not want to run into the same trouble we experienced when we went from the 3 1/4 to 3 1/2 bore. Rm.{William Robotham - Chief Engineer} | ||