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).
The replacement of Mercury ignition plugs with Lodge steatite plugs for the 40/50 Chassis.
| Identifier | ExFiles\Box 162\6\ img037 | |
| Date | 2nd October 1922 | |
| Hs{Lord Ernest Hives - Chair} X4425 Mr Shelton. C. Wd.{Mr Wood/Mr Whitehead} C. Ws. C. Hs.{Lord Ernest Hives - Chair} RECEIVED OCT 3 1922 BY1-F2.10.22. 40/50 CHASSIS. IGNITION PLUGS. It is now agreed that since the Mercury Plug is not available, the Lodge steatite type plug, model Z.22, should take the place of the Mercury. Possibly later Hs.{Lord Ernest Hives - Chair} may find some plug which is better for the intermediate position than the one in question, when, of course, we would arrange to replace the Lodge by any improved type that came along. BY.{R.W. Bailey - Chief Engineer} | ||