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).
Petrol consumption figures for various vehicle models tested in France and England.
| Identifier | ExFiles\Box 147\5\ scan0167 | |
| Date | 24th September 1940 | |
| 1249 File Petrol consumption RR cars. To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}1/SW.24.9.40. Petrol Consumption Figures. FRANCE ENGLAND Wraith 26-G-VI. 15,000 Miles Test 10.88 MPG Test run with Cx.{Major Len W. Cox - Advertising Manager} over 366 miles 12.5 MPG. Continental Test with Mx.{John H Maddocks - Chief Proving Officer} and IMW.{Ivan M. Waller - Head of Chateauroux} 13.00 MPG. 24-G-VI Test run by Rm{William Robotham - Chief Engineer}/Wym{G. Harold Whyman - Experimental Manager} over 237 miles. 14.81 MPG. Test run by Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} over 320 miles. 13.75 MPG. 27-G-VI Test run by Mx{John H Maddocks - Chief Proving Officer} over 206 miles 19.3.38 12.4 MPG. Test run by Mx{John H Maddocks - Chief Proving Officer}/Lewis over 153 miles 7.5.38 14.31 MPG. Test run by Mx{John H Maddocks - Chief Proving Officer} & NRC{N. R. Chandler} over 373 miles 1.7.38 15.3 MPG. (continued) | ||