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).
List of weights for front/rear road springs and front axle/brake assemblies.
| Identifier | ExFiles\Box 88\3\ scan0155 | |
| Date | 5th April 1935 | |
| (4) RHC.{R. H. Coverley - Production Engineer} 5/ETM. 5.4.35. Front Road Springs. Weight of pair of Firths special 4-leaf type. - 26.00 lbs. ------------------------ Rear Road Springs. Weight of pair of Firths special 4- leaf springs - 57.5 lbs. ------------------------ Front Axle and Brakes. Weight of front Axle with 14" brakes complete to LOPs GB.1585/6/7 - 148.00 lbs. Weight of standard front Axle and brakes complete to LOPs GB.1235/6/7 - 131.00 lbs. Weight increase 17 lbs. ------------------------ RHC.{R. H. Coverley - Production Engineer} | ||