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).
Reproducible gearbox crash, referencing the Maybach change gear vacuum control.
| Identifier | ExFiles\Box 182\M19\ img041 | |
| Date | 16th March 1931 | |
| ORIGINAL To Da{Bernard Day - Chassis Design}/Hdy.{William Hardy} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}3/MJ.16.3.31. >2200 MAYBACH CHANGE GEAR VACUUM CONTROL. With reference to Da{Bernard Day - Chassis Design}/Hdyl/M14.3.31. We agree that by the combination of circumstances that you mention, it would appear that even using the full Maybach scheme, a crash could be produced. We can reproduce the crash on our gearbox here, using it with no free position. We are, however, writing to Maybach's to find out whether they have any means of overcoming the trouble. When I actually tried their cars I do not think that I succeeded in reproducing the conditions which we now know give us the worse results. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||