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 torque versus frame deflection for Chassis GIII and GIV with different spring and mounting configurations.
| Identifier | ExFiles\Box 15\1\ Scan079 | |
| Date | 8th February 1929 guessed | |
| CHASSIS No 10 GIII. 1 x----x----x REAR SPRING CHOCKED | CHASSIS GIII STANDARD 2 o----o----o " " FREE READINGS OF θ ARE AVERAGE FOR NS{Norman Scott} AND OS. OBSS 3 o----o----o REAR SPRINGS CHOCKED CROSS COUPLED. | CHASSIS GIV RUBBER ENGINE MOUNTING 4 Δ----Δ----Δ REAR SPRINGS UNCHOCKED CROSS UNCOUPLED. TORQUE LBS - FT. FRAME DEFLECTION θ | ||