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).
Request for two new windings for an Aero Battery Ignition Relay Switch with updated specifications.
| Identifier | ExFiles\Box 168a\2\ img170 | |
| Date | 19th September 1935 | |
| Ac139. RHC.{R. H. Coverley - Production Engineer} From Ha/Wat. Ha/Wat.5/MA.19.9.35. AERO BATTERY IGNITION RELAY SWITCH. Will you please have two new windings wound up for us for the above as follows :- Shunt - wound with 34 S.W.G. instead of 36 S.W.G. Series - wound 18 turns of 15 S.W.G. instead of 28 turns. Ha/Wat. | ||