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).
Request to manufacture four sets of exhaust valves for a 25/30 HP unit.
| Identifier | ExFiles\Box 101\2\ scan0112 | |
| Date | 14th October 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} X500a Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}16/KW.14.10.36. 25/30 HP. Unit. Will you please make 4 sets of exhaust valves in S/SLV to E.61073, the diametrical clearance in the guide to be .0015-.002". It is intended to send one set out to France for fitting in 22-G-V, and one set to be fitted in C-15 in conjunction with the cylinder head LeC.5222. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||