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).
Acceleration test results for vehicle 18.G.IV, detailing times between various speeds.
| Identifier | ExFiles\Box 5a\3\ 03-page096 | |
| Date | 14th November 1931 | |
| x5840 14.11.31. ACCELERATION TESTS ON 18.G.IV. Blois, Orleans road. Weather fair, roads dry, wind light in UP. direction. TABLE DATA: Headers: M.P.H. | UP. Secs. (two runs) | DOWN. Secs. (two runs) | Average 10 - 20: 5.2, 5.0 | 5.6, 5.0 | 5.2 10 - 30: 10.2, 10.2 | 10.2, 11.0 | 10.4 10 - 40: 15.6, 15.2 | 16.2, 16.2 | 15.8 10 - 50: 23.8, 23.8 | 24.6, 23.2 | 23.8 10 - 60: 32.2, 33.0 | 32.2, 35.0 | 33.1 10 - 70: 49.0, 50.0 | 49.0, 52.0 | 50.0 20 - 30: 4.8, 5.2 | 4.6, 6.0 | 5.2 30 - 40: 5.4, 5.0 | 6.0, 5.2 | 5.4 40 - 50: 8.2, 8.6 | 8.4, 7.0 | 8.0 50 - 60: 8.4, 9.2 | 7.6, 11.8 | 9.3 60 - 70: 16.8, 17.0 | 16.8, 17.0 | 16.9 HANDWRITTEN NOTES (Right side): 14 GIV 5.5 secs 6 secs 7 secs 9 secs 16 secs 20 secs HANDWRITTEN SIGNATURE (Bottom right): /W.A. Hyslop A.I.C. | ||