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).
Suggestion to transfer the differential to the gearbox for easier locking and unlocking, requiring a double transmission shaft.
| Identifier | Morton\M21\ img089 | |
| Date | 15th April 1930 | |
| -2- E22/N15.4.30 contd. In connection with the former, attempts to lock the differential on the driving axles have not been satisfactory owing to the high torque involved. This therefore suggested that the differential might be transferred to the gearbox, where it could be easily locked and unlocked when driving. This would require the use of a double transmission shaft driving two back axles as on the sketch attached, and might be considered for future development. E.{Mr Elliott - Chief Engineer} SEE ORIGINAL FOR SKETCH. | ||