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).
Letter discussing competitor gearbox technology, market conditions, and two attached reports.
| Identifier | ExFiles\Box 170\2\ img015 | |
| Date | 2nd March 1931 | |
| -2- Maybach jaws and find that the only satisfactory way of using them is similar to the Maybach, in which there is no neutral position between the top and third. We were rather interested to see that Graham Paige, which we always thought was very good example of the spool gear, appears to be going over to a Helical with a synchro mesh on a Warner gearbox. What is the position as regards spool gearboxes in America, are they unreliable or is it that they are too expensive?. As regards silence, taking helical and epicyclic we consider the spool gear much more silent. We are having a struggle to find buyers for motorcars, especially the big ones, but fortunately we have got a good batch of orders for aero engines. Yours sincerely, Att: Copy of Ha/Rm.{William Robotham - Chief Engineer}2/MJ.30.1.31.- Delco Hydraulic Dampers. " " Ha/Rm.{William Robotham - Chief Engineer}17/KT.2.3.31.- Trial of Maybach Car. Berlin. | ||