Graph from a U.S. Rubber dynamic test showing drag versus slip angle for a 6-16.4 tire.
| Identifier | ExFiles\Box 170\3\ img161 | |
| Date | 21th January 1938 guessed | |
| DRAG OF 6-16.4 TIRE 31# INFL. 28 MPH. STEEL DRUM U.S. RUBBER DYNAMIC TEST LBS DRAG. # 150 DRAG VERTICAL K'PIN IN PLANE OF WHEEL FOR MEASURING PRECESSION TORQUE. CORNERING FORCE 67" DRUM SLIP ANGLE 8° 5 | ||
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).