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 graphs showing acceleration performance data for Standard and Continental Phantom models.
| Identifier | ExFiles\Box 92\2\ scan0004 | |
| Date | 1st February 1928 | |
| Top Graph: CAR SPEED (M.P.H) TIME (SECS) 3RD GEAR TOP GEAR ACCELERATIONS. STANDARD AND CONTINENTAL PHANTOM. STD TOURING CAR '98NK' : --------- CONTINENTAL CHASSIS 17EX (16x52 Rear Axle) ---- WITH TEST KIT : FEB: 1928 Bottom Graph: ACCELERATION (ft./S.S.) CAR SPEED.(M.P.H) 3RD GEAR TOP GEAR ACCELERATIONS. STANDARD AND CONTINENTAL PHANTOM. STD CAR 98NK: --------- CONTL CHASSIS 17EX: ---- FEB: 1928 | ||