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).
Deleting supporting stays for the air silencer on the Phantom III Four Port Head engine.
| Identifier | ExFiles\Box 152\3\ scan0198 | |
| Date | 21th September 1937 | |
| To By. {R.W. Bailey - Chief Engineer} from Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} 319 Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} 1/AP.21.9.37 Phantom III. Four Port Head Will you please note that on the Phantom III. Four Port Head engine we do not now require the supporting stays for the air silencer. Will you therefore instruct for the deletion of stays E.88069, Stay bracket E.88070 and increase the number of rivets E.18305 round the end plate from 8 to 16. 32-EX. car has just completed 17,000 miles to the above specification. A Standardisation Sheet is being issued. Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} | ||