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).
Revised ignition coil for the Goshawk 11 engine, including a list of new and standard parts.
| Identifier | ExFiles\Box 45\4\ Scan104 | |
| Date | 27th November 1922 | |
| X4079 e To RHC.{R. H. Coverley - Production Engineer} from BY/Ds. BY/Dsl/LL.27.11.22. C. EFC C. Sfc. C. LB. C. Wd.{Mr Wood/Mr Whitehead} EXPERIMENTAL RE GOSHAWK 11 - IGNITION COIL - SEC:8140. X4079 In accordance with latest instructions, it is desired to make a revised coil to the following particulars:- (1) Lengthened core and increased area. (2) 280 Primary and 18,000 Secondary turns. Will you therefore please receive herewith one blueprint of the following new parts:- D.50920 - Section of Winding. D.50921 - Coil Core. D.50922 - Arrgt. of Core. (X) D.50923 - Insulation Flange (Upper). (X) D.50924 - " " (Lower). D.50925 - Insulating Washer. D.50926 - Clamp Ring. D.50927 - Core Tube. D.50928 - Stud for Coil. (X) These parts can be produced from the old ones D.50434/5. The following standard parts are also required. - D.1142 - Washer for D.50453. D.1175 - Rubber Ring. D.50433 - Coil Case Cover. D.50436 - Contact Plate. D.50437 - Securing Nut for Cover. D.50438 - H.T. Terminal Head. D.50439 - Plug for H.T. Boss on D.50432. D.50440 - Terminal Plate for D.50436. D.50441 - Bush for D.50437. D.50442 - H.T. Terminal. D.50443 - Rivet for Terminal Plates. D.50453 - Terminal Screw. D.50454 - Terminal Pin. F.6611 - Terminal Screw. F.6614 - Washer. F.6615 - Cheese Head Screw. D.50460 - Terminal Plate for D.50436. F.6663 - Washer. F.6688 - Washer. F.6689 - Insulating Washer. F.6702 - Spring Washer. F.7894 - Washer for Coil Case. Cont'd.{John DeLooze - Company Secretary} [STAMP] Hs{Lord Ernest Hives - Chair} NOV 27 1922 RECEIVED | ||