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).
Extract regarding alternative ignition setups for the Eagle engine's sparking plugs.
| Identifier | ExFiles\Box 34\2\ Scan083 | |
| Date | 22th April 1915 | |
| EXTRACT FROM R13/IB22415 of APRIL 22nd, 1915. RE X.2514 - SPARKING PLUGS - EAGLE. "There aremany other possibilities, including the use of a distributor and a single spark coil, but most of these would require a second set of ignition plugs on one set of cylinders and extra wiring." R.{Sir Henry Royce} | ||