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).
Two acceleration graphs, one comparing a Rolls Royce Phantom to a Bentley, the other comparing high vs low axle ratios.
| Identifier | ExFiles\Box 5a\5\ 05-page004 | |
| Date | 11th November 1926 guessed | |
| Top Graph: ACCELERATION ROLLS ROYCE v BENTLEY VELOCITY M.P.H. TIME SECONDS Legend: 6 1/2 LITRE BENTLEY 10 E.K. & TORY AXLE STANDARD PHANTOM Bottom Graph: ACCELERATION HIGH v LOW AXLE RATIO VELOCITY M.P.H. TIME SECONDS Legend: AXLE RATIO 13/52 AXLE RATIO 17/52 PHANTOM HIGH COMPRESSION 5.2/1 NON STREAMLINE BODY Side Text: ALL FIGURES DIRECT DRIVE C.O. CLOSED | ||