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 and weight test report for the 20 HP car, chassis 1150, at Ticknall Hill.
| Identifier | ExFiles\Box 42\2\ Scan161 | |
| Date | 18th February 1925 | |
| 20HP PERF 20 HP. PERFORMANCE AND WEIGHT. X5771 CHASSIS 1150 Past O.K. dynamometer test for H.P. Taken by EP.{G. Eric Platford - Chief Quality Engineer} and Mr. Archer 18.2.25. Covered test body (6¾ cwt.) i.e. normal total, no ballast or passengers, 29¾ cwt. Ticknall Hill. Dry. No appreciable wind. Conditions good. | Balast cwts. | Passengers. | Total weight. No passgrs: | 6 speeds. | | Time. mins. secs. | |---|---|---|---|---|---| | | | | Max. at top. | Min. | | | 0 | 2 | 29¾ cwt. | 39 | 30 | 1. 40¼ | | 1¾ | 2 | 31 | 38 | 28¼ | 1. 45 | | 3¾ | 2 | 33 | 37 | 26 | 1. 49 | | 5¾ | 2 | 35 | 35 | 25 | 1. 56 | | 7¾ | 2 | 37 | 34 | 23 | 2. 3 | | ||