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).
Experimental camshaft modification to improve the slow running of the 25/30 unit.
| Identifier | ExFiles\Box 103\2\ scan0276 | |
| Date | 16th September 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} X516 Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}8/JH.16.9.36. 25/30. In endeavouring to improve the slow running on the present standard 25/30 unit will you please make the following camshaft for experiment.. Inlet and exhaust cam to be as the present inlet cam form, E.57174. The exhaust cam to lead its respective inlet by 115º. All other details of camshaft as present standard E.59699. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||