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).
Specification for inspection and testing of the latest type 40/50 coil for the Goshawk engine ignition.
| Identifier | ExFiles\Box 49\5\ Scan034 | |
| Date | 22th September 1923 | |
| X4273 To EY. from EFC. {E. Fowler Clarke - Electrical Engineer} c. Mr. Brock. c. EP. {G. Eric Platford - Chief Quality Engineer} EFCl/T22.9.23. X.4273 - LATEST TYPE 40/50 COIL FOR GOSHAWK. Herewith please receive copy of a specification of inspection and test which we have drawn up for the latest type 40/50 coil with paper insulated primary, used with the Goshawk ignition. Attached to Mr. Brock's copy is a table of the results of putting three coils through this test, two of which were borrowed from him for the purpose. EFC. {E. Fowler Clarke - Electrical Engineer} | ||