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 page showing lap times and quarter-mile acceleration tests under various vehicle configurations.
| Identifier | ExFiles\Box 29\3\ Scan075 | |
| Date | 2nd June 1920 | |
| contd. -3- 2.6.20. ¼ mile flying. Time. 23.5 secs. Speedometer. at stop. ¼ mile from 10 M.P.H. Time. 38 secs. Speedometer. at stop. Test 7. Condition - Hood and windscreen up - cut-out closed. 3.6.20. ⅛" liners under cylinders. Lap 1. Time. 2 m.{Mr Moon / Mr Moore} 29 sec. Speedometer. min. 65 max. at stop Lap 2. Time. 2 m.{Mr Moon / Mr Moore} 29 sec. Speedometer. min. 66 max. at stop Lap 3. Time. 2 m.{Mr Moon / Mr Moore} 29 sec. Speedometer. min. 65¾ max. at stop ¼ mile flying. Time. 26 secs. Speedometer. at stop. ¼ mile from 10 M.P.H. Time. 42 secs. Speedometer. 69 M.P.H. Test 8. Condition - Hood down - windscreen up - cut-out closed. ⅛" liners under cylinders. Lap 1. Time. 2 m 28 sec. Speedometer. min. 65 max. at stop Lap 2. Time. 2 m.{Mr Moon / Mr Moore} 28¾ sec. Speedometer. min. 65¾ max. at stop Lap 3. Time. 2 m.{Mr Moon / Mr Moore} 28 sec. Speedometer. min. 65¾ max. at stop ¼ mile flying. Time. 26 secs. Speedometer. at stop. ¼ mile from 10 M.P.H. Time. 41¾ secs. Speedometer. 70 M.P.H. Test 9. Condition - Hood down - windscreen down - cut-out closed. ⅛" liners under cylinders. Contd. | ||