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 showing camber thrust versus camber angle for a 7.5-16.6 tire on emery cloth.
| Identifier | ExFiles\Box 170\3\ img155 | |
| Date | 21th January 1938 guessed | |
| Camber Thrust of 7.5-16.6 Tire 36# Inf Emery Cloth Curved 33.6" Rad & Flat THRUST LBS 400 360 320 280 240 Curves extrapolated beyond this range Rated Load 1560# T&R Standards Camber Angle 7º Flat 2 | ||