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).
Dispatch and trial of special ceramic insulated sparking plugs on a 25/30 trials car.
| Identifier | ExFiles\Box 162\4\ img215 | |
| Date | 8th December 1936 | |
| 6001B W/LH.{Mr Haworth} To JLE.{J. Lee Evans - Chassis Test Manager} from Rm{William Robotham - Chief Engineer}/Wst. c. to Sg.{Arthur F. Sidgreaves - MD} Rm{William Robotham - Chief Engineer}/Wst.15/AP.8.12.36. We are sending to you under separate cover six special Ceramic insulated sparking plugs type W.145.T.I. Will you please arrange to have these fitted to a 25/30. trials car as we are anxious to get as much running as possible with these plugs in the near future. Will you please keep a careful record of the mileage and what attention, if any, is found necessary to the plugs. Rm{William Robotham - Chief Engineer}/Wst. | ||