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).
Letter altering the automatic advance speed specification for a 6-cylinder magneto for the 40/50 car.
| Identifier | ExFiles\Box 48\2\ Scan215 | |
| Date | 27th August 1924 | |
| X8794 Letter also sent to Messrs. Lucas Elec. Co., EFC {E. Fowler Clarke - Electrical Engineer} 8/T. Wall Street, B'ham. The M.L. Magneto Syndicate, Victoria Works, Coventry. EFC {E. Fowler Clarke - Electrical Engineer} 7/T. EFC {E. Fowler Clarke - Electrical Engineer} 6/T. 27th August, 1924. Messrs. North & Sons Ltd., Whippendell Road, Watford. Dear Sirs, With reference to our "Specification of Performance of 6-cylinder Magneto (with automatic advance) for R.R. 40/50 car", copy of which, dated 27.5.24, has been passed to you in connection with a suggestion of your making up a magneto as nearly as possible to this specification, would you kindly note that we have decided to alter the figure of 450 r.p.m. in par: No.3, to 600 r.p.m., so that the sentence now reads:- " The automatic advance should commence at a speed not greater than 600 r.p.m..... etc." This alteration will make it easier for you to arrange the desired advance characteristic. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||