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 cable pull in pounds against distance in feet for various gear ratios.
| Identifier | ExFiles\Box 175\2\ img140 | |
| Date | 31th May 1944 | |
| 3.25 GEAR RATIO 3.53 3.96 3.53 RATIO 3.96 RATIO 4.33 RATIO IN CABLE PULL LBS FROM START OR R.V.L. Ft 3000 3500 4000 4500 750 1000 1250 1500 1750 2000 31.5.44 | ||