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).
Performance test results for a Lagonda 12 Cylinder car comparing acceleration times using Ethyl and Pool fuel.
| Identifier | ExFiles\Box 128\3\ scan0091 | |
| Date | 30th April 1940 | |
| 1104. 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}3/SW.30.4.40. Lagonda Car 12 Cyl. Performance tests were carried out on the above car using ETHYL spirit instead of POOL. We were able to advance the ignition a further 8° and thus improve the performance by 2.4 secs from 20 - 80 MPH. The following are the comparative performance figures. ETHYL POOL. 20 - 60 MPH. 17.6 secs 20.0 secs 60 - 80 " 12.8 " 12.8 " 20 - 80 " 30.4 " 32.8 " ----------------- Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||