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).
Cable detailing suspension test results and necessary adjustments.
| Identifier | ExFiles\Box 11\3\ 03-page286 | |
| Date | 10th November 1930 | |
| CABLE x7941e. Hly. 10-11-30 Hives, Rolls-Royce, Springfield, Mass. U.S.A. Have obtained excellent results with ten inches rear five point five inches front deflection. Your spare rear springs will require extra leaf. Damper loads front one hundred drilled rear seventy. Robotham. | ||