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 of precession torque for a 7 1/2 - 16.6 tire, with curves plotted for different slip angles.
| Identifier | ExFiles\Box 170\3\ img157 | |
| Date | 21th January 1938 guessed | |
| 3 PRECESSION TORQUE OF 7 1/2 - 16.6 TIRE 36# INF 29 MPG STEEL DRUM, 33.6" RAD TORQUE LB-FT 200 180 160 140 120 100 1560# Rated Load SLIP ANGLE 7° 6° 5° 4° 3° | ||