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).
Secret memo discussing modifications to pistons, connecting rods, induction pipes and magnetos.
| Identifier | ExFiles\Box 66\1\ scan0003 | |
| Date | 17th July 1924 | |
| To BY/C. from E.{Mr Elliott - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} X8090 (crossed out) S E C R E T. E3/M17.7.24. E.A.C.11. PISTONS AND CONNECTING RODS. (Numbers to the right are crossed out: X.9030, X.9040, X8030, X9090) In reply to your memo. BY/C7/H15.7.24., we should be glad if you would go ahead in Derby with the connecting rods .5" longer, and with the modifications to exhaust pipes, and induction pipe. These latter consist in slight modifications to the angles of the flanged connectings to the exhaust down- takes, and of returning to the original dimensions of the induction pipe uptake. With regard to the pistons we are about to send a modified and simpler form of piston pin. With regard to the controls we are looking into this matter in connection with the Scintilla magneto, and will deal with the throttle governor modifications at the same time. We have sent to Derby for a sample of the Scintilla magneto because some modification is required to obtain sufficient clearance between the H.T. conductors and the steering column when this type of magneto is used. E | ||