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).
Continued response to a query regarding the battery ignition governor spring and distributor speed limits for a 20 HP engine.
| Identifier | ExFiles\Box 37\1\ scan 273 | |
| Date | 27th August 1924 | |
| Contd. -8- EFC9/T27.8.24. between the degrees of advance on the battery ignition and the hand lever. Lastly, with reference to E's final query, there is a slight initial set on the 20 HP. battery ignition governor spring. The distributor speed limits given on production between which the mechanism commences to advance are 200 to 400 r.p.m., corresponding to engine speeds of 400 to 800 r.p.m. EFC. Groups I and II, drawings and tracings sent under separate cover. | ||