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).
Comparison of thick and thin leaf springs, referencing pre-war designs and drive characteristics.
| Identifier | ExFiles\Box 51\4\ Scan064 | |
| Date | 16th August 1922 | |
| - 2 - EP {G. Eric Platford - Chief Quality Engineer} 4/116.8.22. compared with thick leaf springs, and America contend that if the slack in the drive is eliminated (to avoid chunking) and the tyres not pumped up too hard, that only a slight extra friction than that given by the present thin leaf springs is required. They also point out that the pre-war thin leaf springs are more effective than the present springs, as comparatively more leaves were used. EP. {G. Eric Platford - Chief Quality Engineer} | ||