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 the decision to fit a Humber damper to a B.60 No.1 Unit.
| Identifier | ExFiles\Box 124\1\ scan0289 | |
| Date | 19th December 1939 | |
| 1044 To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}12/JH.19.12.39. B.60 No.1 Unit. Further to our memo. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}10/JH.12.12.39. It has now been decided to fit a Humber damper to this unit. Will you therefore complete the second set of parts for this purpose as recently fitted to B.60 No.3 Unit (Chain drive). Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||