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).
The failure of a 2nd Motion Shaft in a gear box, detailing mileage, suspected cause, and the implemented solution.
| Identifier | ExFiles\Box 136\2\ scan0125 | |
| Date | 27th June 1939 | |
| 1153 + 4006 To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} C. C. C. HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth}3/BA.27.6.39. 8.B.V. Gear Box. Failure of 2nd Motion Shaft GB.4817. This shaft has run 1,840 miles in 9.B.V., 66 miles in 30.G.VII ( 8 Cylinders) and 200 miles in 11.B.V. ( 8 Cylinder) We suggest the failure may be due to the Selector Lever GB.4455 slightly fouling the top of the Selector Jaws GB.4342, which prevents 1st speed driving gear fully mating. This trouble is now overcome by the Selector Jaw GB.5128. HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} | ||