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).
Time-velocity curve for a 40/50 R.R. Open Touring car weighing 2.15 tons.
| Identifier | ExFiles\Box 73\3\ scan0286 | |
| Date | 26th February 1923 | |
| TIME VELOCITY CURVE 40/50 R.R. OPEN TOURING WT. 2.15 TONS. ROAD SPEED M.P.H. TIME SECONDS. THIS CURVE IS EVOLVED DIRECTLY FROM ACCELERATION FIGURES, COMPARING 20 H.P. & 40/50. DATED 26/2/23. | ||