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).
Blueprint diagram illustrating the ignition timing for an E.A.C.10 engine.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan119 | |
| Date | 26th September 1928 | |
| DEGREES OF ADVANCE ON ENGINE -20 -10 0 10 20 30 40 50 FULL BATTERY RETARD 10° FULL MAG RETARD 5° RETARD ADVANCE A T C B T C IGNITION LEVER TRAVEL IGNITION TIMING DIAGRAM FOR E.A.C.10 ENGINE To RI./M.19-9-28 H.E.W. 26-9-28 HAND ADV. BATTERY IGNITION 30° HAND ADV. MAGNETO 15° SYNCHRONIZATION OCCURS AT MIDDLE OF TRAVEL AUTO ADVANCE RANGE 25° FULL ADVANCE 45° | ||