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).
Simplified design and manufacturing of the Wraith III main switch.
| Identifier | ExFiles\Box 168a\2\ img300 | |
| Date | 22th April 1937 | |
| [Redacted] [Redacted] [Redacted] c. RHC{R. H. Coverley - Production Engineer} c. Rm.{William Robotham - Chief Engineer} 8139 651 BY/RD.3/B.22.4.37. WRAITH III - MAIN SWITCH. Please receive herewith, tracing of RR.Sch.1077 - Simplified Details of Starter Main Switch. The whole of the switch has been carefully examined to reduce the number of parts, and where possible use standard parts. The use of expensive material has been carefully considered, and deleted where possible. Also the method of construction has been revised to enable the building up, to be done more expeditiously. BY/RD. | ||