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).
Conclusion on the effectiveness of new end covers based on temperature readings.
| Identifier | ExFiles\Box 93\4\ scan0072 | |
| Date | 14th October 1936 guessed | |
| -2- From these figures it is seen that these new end covers make no appreciable difference to the temperature recorded and therefore no useful purpose will be served by adopting them. HB{C. E. Harcombe}/Std. | ||