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).
Assembly difficulty with the Spectre Clutch operating shaft, suggesting the use of a blank serration.
| Identifier | ExFiles\Box 93\3\ scan0023 | |
| Date | 22th February 1935 | |
| SECRET. +3/2 Rm{William Robotham - Chief Engineer} To BY.{R.W. Bailey - Chief Engineer} from HDY.{William Hardy} c.c. B. Hs.{Lord Ernest Hives - Chair} De. RHC.{R. H. Coverley - Production Engineer} HDY.{William Hardy}1/HP.22.2.35. SpectreCodename for Phantom III Clutch. With reference to the operating shaft for this clutch, some difficulty is experienced in assembling the levers (G.81336) on the helical splines on the shaft in the correct relative position as there are 24 starts and no blank serration. We suggest the use of a blank serration and should be glad if you would instruct this or alternatively inform us of any drawback there may be. HDY.{William Hardy} | ||