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 torque against angular deflection to measure transmission and tyre flexibility.
| Identifier | ExFiles\Box 74\3\ scan0025 | |
| Date | 15th January 1929 guessed | |
| TRANSMISSION FLEXIBILITY G II. REAR OF GEAR BOX TO TYRE. TYRE FLEXIBILITY INCLUDED. TORQUE LBS.FT ANGULAR DEFLECTION 100 80 60 20 0 2° 4° 6° 8° 10° 12° 14° 16° 18° 20° | ||