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 detailing improvements to the Phantom's auto advance system, including new timing instructions and piston modifications.
| Identifier | ExFiles\Box 65\1\ scan0160 | |
| Date | 14th May 1926 | |
| Extract :- X8685 R3/M14.5.26. PHANTOM AUTO. ADVANCE. X.8685. Certain improvements to the auto.advance have been made. The timing instructions should be given in the book to set and synchronise in well advanced positions of the hand controls (not in the retarded position). We are sending Derby, amongst other modifications, for this, a piston with metal rings (bevelled rings) instead of leather. | ||