Goshawk engine battery and magneto ignition diagram graph.
| Identifier | ExFiles\Box 54\5\ Scan251 | |
| Date | 1st November 1933 | |
| X3485 Battery Ignition advance (Fully advanced automatically) Advance allowed by rotor blade (Full automatic retard) Magneto Advance Battery Ignition advance (Fully retarded automatically) Retard Advance Ignition Lever Travel GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) BATTERY & MAGNETO IGNITION DIAGRAM B P ADF 40 30 20 10 0 10 20 30 40 E.7.C Nov. 1933 | ||
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).