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).
Instruction to modify ignition governors by replacing springs on future 'Spectre' units.
| Identifier | ExFiles\Box 4\1\ 01-page206 | |
| Date | 7th January 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} <300 Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}2/KW.7.1.35. SpectreCodename for Phantom III. For future units being produced will you please modify the ignition governors by using Hs.{Lord Ernest Hives - Chair}1876 springs in place of the existing springs E.57915. When assembled there should be no initial tension of the springs on the governor weights, and the latter should have up to .010 movement before coming on to the springs. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||