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).
Drawing showing modifications to a synchromesh gearbox reverse shaft to increase stiffness.
| Identifier | ExFiles\Box 104\4\ scan0066 | |
| Date | 11th November 1931 | |
| Hs{Lord Ernest Hives - Chair} 450 THICKNESS OF BUSH UNALTERED 1.337 DIA 1.250 DIA 1.450 DIA .760 DIA 2.750 SYNCHROMESH GEAR BOX MODIFICATIONS TO REVERSE SHAFT FOR INCREASED STIFFNESS ROLLS-ROYCE, LIMITED PRINT ROOM 11 NOV 31 | ||