Engine improvements for the E.16, F.10, Phantom, and Goshawk models, focusing on valve restrictions and new components.
| Identifier | ExFiles\Box 106\5\ scan0003 | |
| Date | 30th March 1926 | |
| X5060 To RG. {Mr Rowledge} E. {Mr Elliott - Chief Engineer} } FROM R. {Sir Henry Royce} Hs. {Lord Ernest Hives - Chair} BY: { LE CANADEL(Henry Royce's French residence). c: to CJ. BJ. Wor {Arthur Wormald - General Works Manager} : HS {Lord Ernest Hives - Chair} /M30.3.26. RE. E.16; F.10; PHANTOM & GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) HP. X.4099 X.8060 X.4114 X.5060 X.3804 It is evident that you have touched the defect in getting the gas in and out of these gx engines by the restriction in the valve bends, and what you have done has definitely improved matters. One now thinks that new cylinders for F.10, and new head for E.16, should be pushed forward with all speed, doing all we have decided and more if we can find a way of keeping the gas speed down, even lower than in any previous or competing engines. We should also look to the present Phantom, Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) and new aluminium head for Phantom. Do we want water between the inlet passages? Can it be made into a single chamber and entrance? 1.3/4 valves for Eagle(Aero Engine) approved. R. {Sir Henry Royce} | ||
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).