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).
Requesting an overhaul of a dynamo removed from Wraith No.4 after it failed endurance testing.
| Identifier | ExFiles\Box 155\2\ scan0249 | |
| Date | 12th September 1938 | |
| X 1315 To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}4/JH.12.9.38. Will you please overhaul dynamo, removed from Wraith No.4. This dynamo failed during 20 hours endurance. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||