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).
Report page discussing air consumption measurement methods with a disclaimer on the data's age.
| Identifier | ExFiles\Box 148\2\ scan0102 | |
| Date | 28th November 1938 | |
| -9- Rm{William Robotham - Chief Engineer}/FWK.8/JH.28.11.38. Air consumption was measured either by a balanced pressure pump instrument or by the orifice method. .......... When reading the above report it must be remembered that the information contained therein is 18 months old, and there can be no doubt that improvements in most directions have by this time been effected. Rm{William Robotham - Chief Engineer}/F.W.Kennington. | ||