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).
With a drawing, specifying an additional lubrication hole drilling for the Spectre Camshaft.
| Identifier | ExFiles\Box 93\5\ scan0021 | |
| Date | 30th May 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} +309 Hs{Lord Ernest Hives - Chair}/Smth.8/KW.30.5.35. SpectreCodename for Phantom III Camshaft Lubrication - Hs.{Lord Ernest Hives - Chair}1992. In addition to the .063" holes which we have shown in the centre of each section of the camshaft, we should like a .063" hole drilling in each of the last eight cams. The holes should be on the base circles, 80° in advance of the centre lines of the cams. Hs{Lord Ernest Hives - Chair}/Smth. 80° ¢ of HOLE | ||