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).
Replacement of unreliable Lucas ignition switchboxes with Goshawk or Delco parts for the 40/5P model.
| Identifier | ExFiles\Box 45\4\ Scan337 | |
| Date | 1st September 1922 | |
| x4081 Extract from R3/M1.9.22. IGNITION SWITCH. X.4081. X.3749. Regarding the switchbox and cutout, and distribution board, the English production should use those made for the Goshawk with such modifications as are found necessary for the 40/5P, to comply with the double ignition, etc. No more Lucas switchboxes should be purchased because I understand these are still giving dis-satisfaction through unreliability of the cutout. If necessary, you could use the same scheme as on the American production cars, i.e. Delco switch, until we could get RR ones made suitable. | ||