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).
Suitability of K.L.G. plugs for the Phantom engine, comparing them to Lodge plugs.
| Identifier | ExFiles\Box 58\3\ Scan093 | |
| Date | 5th March 1927 | |
| C O P Y M1918e. c Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from Mx.{John H Maddocks - Chief Proving Officer} Mx{John H Maddocks - Chief Proving Officer}2/T5.3.27 re K.L.G. Plugs. With reference to your enquiry as to the suitability of the above plug for the Phantom engine, so far as our experience goes, we have found them quite satisfactory. In fact, some time ago, when we were in trouble with overoiling on the Phantom engine, we considered the K.L.G. Plug to be definitely better than the Lodge. As we are not suffering from this trouble at the present time, this point does not greatly concern us. Mx.{John H Maddocks - Chief Proving Officer} | ||