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).
Standardization of spark plugs for Phantom cars.
| Identifier | ExFiles\Box 162\6\ img092 | |
| Date | 1st November 1925 | |
| To BJ. from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to EF. c. to HY.{Tom Haldenby - Plant Engineer} +4428 Hs.{Lord Ernest Hives - Chair} absent. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LGG.11.25. SPARKING PLUGS. +8970 With reference to BJ1/H4.11.25 and EF4/H3.11.25. We understand that at the moment all Phantom cars are being delivered with detachable Lodge plugs. We have been unable to detect any difference between these and the non-detachable type as regards pre-ignition and durability. We are completing a series of tests on other types of detachable plug with a view to determining the best make for standardisation. Hs{Lord Ernest Hives - Chair}/W.A.Robotham. | ||