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).
Request for a report on vacuum ignition tests on a 4-B-30 model and for a monthly statement on experimental parts manufacture.
| Identifier | ExFiles\Box 159\5\ scan0151 | |
| Date | 5th February 1941 | |
| 33. VACUUM IGNITION ON 4-B-30. Rm.{William Robotham - Chief Engineer} would like a report as to whether this modification has made the car any rougher. Also careful consumption tests to be made over periods of one month normal use of the car with and without vacuum ignition, to see what has been gained by it. 34. MANUFACTURE OF EXPERIMENTAL PIECES. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} is asked to submit a monthly statement of experimental parts which have been completed, and those in progress of manufacture. Rm.{William Robotham - Chief Engineer} | ||