Request to produce an aluminium cylinder head for the Phantom and to prepare drawings for cast iron cylinder blocks.
| Identifier | ExFiles\Box 65\4\ scan0374 | |
| Date | 22th November 1927 | |
| [strikethrough]To BY {R.W. Bailey - Chief Engineer} /CS.[/strikethrough] c. to HS. {Lord Ernest Hives - Chair} X8050 BY {R.W. Bailey - Chief Engineer} /SS {S. Smith} 1/DB. {Donald Bastow - Suspensions} 22.11.27. Re Phantom - Aluminium Cylinder Head. Will you please put in hand an aluminium cylinder head similar in all respects to E.76656, but suitable for a compression ratio 4½ to 1. The lower face of the casting should be made thick enough to produce a compression ratio of 4½ to 1, by suitable machining. At this stage we also suggest you prepare detail drawings of cast iron cylinder blocks, suitable for both the above heads, replacing the alum: dry liner type. These cylinder blocks will probably be required in the early future. BY {R.W. Bailey - Chief Engineer} /SS. {S. Smith} [Circular Stamp: RECEIVED 23 NOV 1927] | ||
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).