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).
Typewritten list of performance metrics including consumption, speed, weight, and gear ratio.
| Identifier | ExFiles\Box 81\1\ scan0052 | |
| Date | 23th May 1919 | |
| Petrol consumption 23.9 Speed on track 77.1 Wind area 10.3 Weight without passengers 4.369 Weight with passengers 4.990 Gear ratio 3 to 1. Our speed 78.26 Petrol consumption 24.32 [Text in left margin]: R.R. 235A (100 H) X 23.5.19 G 9600 | ||