Graph and data table comparing the ratio of movement of the steering wheel to the pendulum lever for the New Phantom and Marles steering systems.
| Identifier | ExFiles\Box 28\2\ Scan011 | |
| Date | 3rd March 1926 guessed | |
| NEW PHANTOM(Codename for PHANTOM I) (7/8 WORM LEAD) AND MARLES STEERING THE RATIO OF MOVEMENT OF STEERING WHEEL TO PENDULUM LEVER. Y-Axis Label: ANGLE OF STEERING WHEEL X-Axis Label: ANGLE OF PENDULUM LEVER Graph Line Labels: MARLES STEERING NEW PHANTOM(Codename for PHANTOM I) (7/8 WORM LEAD) STEERING RIGHT HAND LOCK LEFT HAND LOCK Table Data: HEADINGS: ANGLE OF PENDULUM LEVER DEG. | MARLES STEERING (R.H. LOCK / L.H. LOCK) | NEW PHANTOM(Codename for PHANTOM I) STEERING (R.H. LOCK / L.H. LOCK) DATA (Angle | Marles | New Phantom(Codename for PHANTOM I)): 0° | 0° | 0° 1° | 8° | 9.1° 2° | 16° | 18.2° 3° | 24° | 27.3° 4° | 32° | 36.4° 5° | 40° | 45.5° 6° | 48° | 54.6° 7° | 56° | 63.7° 8° | 64° | 72.8° 9° | 72° | 81.9° 10° | 80° | 91° 12° | 96° | 109.2° 14° | 112° | 127.4° 16° | 128° | 145.6° 18° | 144° | 163.8° 20° | 160° | 182° 22° | 176° | 200° 24° | 192° | 219° 26° | 208° | 238° 28° | 224° | 256.5° 29° | 232° | 266° 30° | 240° | 275.5° 31° | 248° | 285° 32° | 256° | 294.5° 33° | 264° | 304° 34° | 272° | 313.5° 35° | 280° | 323° 36° | 288° | 332.5° 37° | 296° | 342° 38° | 304° | 351.5° 39° | 312° | 361° 39.5° | 316° | 365.75° TABLE FOOTER: Marles Steering: 320° AND 40°, END OF TRAVEL New Phantom(Codename for PHANTOM I) Steering: 368.5° AND 40.5°, END OF TRAVEL | ||
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).