List of instructed parts for the 25 HP programme, categorized for China and Japan.
| Identifier | ExFiles\Box 5a\1\ 01-page174 | |
| Date | 6th July 1931 | |
| To RHC. {R. H. Coverley - Production Engineer} From Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 5/MJ.6.7.31. Y 5730 25 HP. PROGRAMME. We now have the following parts instructed.- CHINA(Experimental Engine): (1) High lift rocker valves and pedestals. By {R.W. Bailey - Chief Engineer} /CS/EH1.7.31. (2) Adaptor for S.U. carburetter. Carb. handed to RHC. {R. H. Coverley - Production Engineer} 28.6.31. (3) Distance washers for lifting head and altering C.R. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 3/MTG.2/7/31 (4) New expansion box to Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} /MJ30.6.31. H.Sch.3287. (5) Air silencer for S.U. carburetter. H5409 *JAPAN(Experimental Engine)*: (1) Adaptor for S.U. carburetter. Hs {Lord Ernest Hives - Chair} /Gry {Shadwell Grylls} 2/MJ30.6.31. (2) Modified weir type induction pipe to give greater slot area. V. {VIENNA} Claremont Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).