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).
Substitution of a Duralumin armature with a mild steel one for the Main Switch Sec.8160.
| Identifier | ExFiles\Box 168a\2\ img339 | |
| Date | 24th June 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to Wst/JJ. 6139. Wst/RC.{R. Childs}4/JH.24.6.37. re Main Switch Sec.8160. Owing to the difficulties experienced in obtaining Duralumin pressings of the armature for the above, we have received from the D.O. an armature made up in mild steel. Will you please arrange for this to be fitted to a main switch, which we will supply from the laboratory. Wst/RG.{Mr Rowledge} | ||