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).
Testing a new Lodge X.523 sparking plug and suggesting alterations for the 25/30 HP model.
| Identifier | ExFiles\Box 162\6\ img318 | |
| Date | 30th April 1936 | |
| To Hs{Lord Ernest Hives - Chair}/Wst. e.{Mr Elliott - Chief Engineer} to Hx. c. to Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell} r60026 HS{Lord Ernest Hives - Chair}/GR.{George Ratcliffe}11/KW.30.4.36. 25/30 HP. Sparking Plugs. A new type of plug, Lodge X.523, was tested on 21-G-IV and a production chassis. They proved to be an improvement on Lodge RL.14, and run evenly at 6 M.P.H. They have been recommended to F.{Mr Friese} Dodd for use on the Phantom III 32-EX. Alterations are suggested for the 25/30 HP. as follows :- (1) Increase length of barrel to 21 m/m.{Mr Moon / Mr Moore} (2) Undercut the first two threads to avoid accumulation of carbon and exposure to combustion. Hs{Lord Ernest Hives - Chair}/G.Ratcliffe. Pim | ||