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 Total Sideways Load against Total Self Centering Torque for varying castor angles.
| Identifier | ExFiles\Box 158\1\ scan0219 | |
| Date | 8th April 1935 | |
| CASTOR ANGLE & TYRE SELF CENTERING TORQUE CHASSIS 3 B.V. FRONT WHEELS ON 4 FT DIA. DRUMS TYRES 6.50 x 17 x 25LBS/d□ 100% WORN INDIA 3 1/2° CASTOR ANGLE 100% WORN INDIA 0° CASTOR ANGLE TOTAL SELF CENTERING TORQUE LBS. FT. TOTAL SIDEWAYS LOAD - LBS Y-AXIS: 200, 175, 150, 125, 100, 75, 50, 25, 0 X-AXIS: 0, 200, 400, 600, 800, 1000 TOP RIGHT: A.D.D. / 8 / 4 / 35 | ||