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).
Table of engine fuel consumption (EFC) data at various RPMs and horsepower outputs.
| Identifier | ExFiles\Box 36\2\ scan 026 | |
| Date | 26th June 1917 guessed | |
| X. 2934 EFC from EP.{G. Eric Platford - Chief Quality Engineer} EP{G. Eric Platford - Chief Quality Engineer}/T32/R28617. R.P.M. Curve HP. Consumption. lbs per HP hour. 2100 259. .514. 2000 253 .509 1900 246 .505 1800 236.5 .501 1700 225.5 .5 1600 213 .502. 1500 200 .511 1400 .528 ) More than can be obtained by use of mixture control. short runs only. U. This replies to your EFC of T.robey. EP.{G. Eric Platford - Chief Quality Engineer} | ||