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).
Short note on the progress of a battery ignition design for the Kestrel Engine.
| Identifier | ExFiles\Box 30\4\ Scan085 | |
| Date | 19th February 1934 guessed | |
| - 2 - Kestrel Engine. ------------ A design for battery ignition on this engine is nearing completion. | ||