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 a pair of 4-port heads for a Phantom III, including deturbulating and restoring the standard compression ratio.
| Identifier | ExFiles\Box 93\4\ scan0073 | |
| Date | 14th October 1936 | |
| X319 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}4/KW.14.10.36. Phantom III. Will you please modify one pair of 4-port heads (E.87735) which are going through to Rm.{William Robotham - Chief Engineer}241. This modification includes deturbulating and recovery of the compression ratio to standard 6:1. The above when completed are to be tried out on a test bed unit and then fitted to a chassis. This order is an entirely separate issue to the heads for the Continental Ph.III unit No.14 (Rm.{William Robotham - Chief Engineer}160). Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||