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).
Continued discussion on engine ignition systems, hand starting, and back-firing.
| Identifier | ExFiles\Box 54\5\ Scan160 | |
| Date | 29th August 1921 | |
| S.H. 384A (100. T) (S.H. 798. 10-12-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2948 Contd. -2- R6/G29.8.21. be started on the ignition only by moving the hand control, and there is no fear of the engine back- firing, should it be necessary to start the engine by hand. We do not know any system of ignition in which all these advantagese are combined. R. {Sir Henry Royce} | ||