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).
The starting procedure for an engine fitted with a U.S.A. Bosch battery ignition.
| Identifier | ExFiles\Box 61b\4\ scan0054 | |
| Date | 19th July 1921 | |
| R.R. 285A (100 T) (S H.{Arthur M. Hanbury - Head Complaints} 788, 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 X4275 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} Hs{Lord Ernest Hives - Chair}2/LG19.7.21. X4275 U.S.A. BOSCH BATTERY IGNITION. With reference to your query, whether it is possible to start the engine by switching on and retarding the ignition when the above type of battery ignition is fitted. We find that it is possible to do so with the set which was sent over on 4.EX Car. In this respect, the ignition is as good as our own. Hs.{Lord Ernest Hives - Chair} | ||