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).
Delco ignition catalogue and a query about the ignition systems used on American aero engines.
| Identifier | ExFiles\Box 163\7\ img157 | |
| Date | 18th September 1931 | |
| X6036 To E.{Mr Elliott - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} Hsl/AD18.9.31. Attached herewith please find latest catalogue of Delco ignition. I wrote to Cy. asking him what was the reason for most of the American aero engines using magneto ignition whereas originally they were mostly using battery sets. Hs.{Lord Ernest Hives - Chair} Attached. Copy of letter. Catalogue. | ||