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).
Suggestion to increase the automatic ignition advance on the 20HP model to reduce the risk of detonation.
| Identifier | ExFiles\Box 51\5\ Scan244 | |
| Date | 14th July 1927 | |
| TO HS. {Lord Ernest Hives - Chair} E. {Mr Elliott - Chief Engineer} ) FROM R. {Sir Henry Royce} (E. {Mr Elliott - Chief Engineer} is crossed out and 'BY EFO.' is handwritten underneath) X 4354 ORIGINAL R2/M14.7.27. X.4354 20HP. - AUTO: IGNITION ADVANCE. My experience with this suggests that the auto: advance should be increased so that rather too much retarded, to reduce risk of detonations, as is so successful with Phantom. R. {Sir Henry Royce} | ||