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).
The Phantom III flywheel balancing scheme, recommending it for immediate production without further testing.
| Identifier | ExFiles\Box 91\1\ scan0409 | |
| Date | 21th August 1936 | |
| To E.{Mr Elliott - Chief Engineer} c. to Hy.{Tom Haldenby - Plant Engineer} K.300 Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}7/JH. 21.8.36. Phantom III Engine Vibrations. With reference to LeC.5235, showing Ph.III flywheel balancing scheme, this appears to be quite alright, it is similar to the experimental scheme fitted to 36-EX, and we consider it should be put into production as soon as possible. We do not consider it necessary to run a 10,000 miles test before standardisation. HS{Lord Ernest Hives - Chair}/G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Wyman. | ||