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).
Exhaust cooling and jacketing on the Spectre Cylinder Head in comparison to other engines.
| Identifier | ExFiles\Box 93\4\ scan0004 | |
| Date | 16th May 1934 | |
| X411 319 Rya (Signature) Steadman. Please check this To Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} E.1/HP.16.5.34. re SpectreCodename for Phantom III Cylinder Head. Referring to the point raised in connection with the amount of exhaust cooling and heat to water on the above, actually the exhaust jacketing is no more than on the present Bentley or our other engines due to the fact that on these latter the exhaust has to carry on passed the valve tappet rods. E.{Mr Elliott - Chief Engineer} | ||