From G. Ratcliffe to Mr. Hives detailing engine performance data with the cut-out closed.
| Identifier | ExFiles\Box 72\4\ scan0349 | |
| Date | 14th August 1924 | |
| 49721 To Mr. Hives from G. {Mr Griffiths - Chief Accountant / Mr Gnapp} Ratcliffe. 14.8.24. EAC.111. 46-PK. CUT-OUT CLOSED. | Eng. R.P.M. | Drum. R.P.M. | Lbs. lift. | H.P. | |-------------|--------------|------------|---------| | 500 | 112 | 164 | 26.24 | | 750 | 168 | 160 | 38.4 | | 1000 | 224 | 150 | 48 | | 1250 | 280 | 144 | 57.6 | | 1500 | 336 | 140 | 67.2 | | 1750 | 393 | 134 | 75.23 | | 2000 | 449 | 124 | 79.54 | | 2250 | 505 | 115 | 83 | | 2500 | 561 | 103 | 82.5 | G. {Mr Griffiths - Chief Accountant / Mr Gnapp} Ratcliffe. | ||
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).