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).
Graph plotting road speed against time for acceleration tests in 3rd and Top gear.
| Identifier | ExFiles\Box 22\3\ Scan093 | |
| Date | 26th February 1932 | |
| 17 G IV (S.25:1 R.{Sir Henry Royce} 20/25) ACCELERATION TESTS WEIGHT OF CAR 33 1/2 CWT (+2 PASSENGERS) ROAD SPEED (M.P.H) TIME (SECS) 3RD GEAR TOP GEAR 26-2-32 | ||