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 comparing the acceleration performance of Standard and Continental Phantom models.
| Identifier | WestWitteringFiles\R\2December1927-February1928\ Scan200 | |
| Date | 23th February 1928 guessed | |
| ACCELERATIONS STANDARD V CONTINENTAL PHANTOM STANDARD 2.35 TONS 15 x 52 AXLE 4.0-1 COMP RATIO CONTINENTAL 2.1 TONS 16 x 52 AXLE 4.75 COMP RATIO ALL TESTS C.O. OPEN 3RD GEAR TOP GEAR ACCELERATION FT/SEC² ROAD SPEED M P H | ||