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).
Failure location and test parameters for a Cadillac rear axle shaft, with a comparison to a Singer XI rear axle.
| Identifier | ExFiles\Box 125\1\ scan0357 | |
| Date | 14th April 1938 | |
| 1052. To Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} from Rm{William Robotham - Chief Engineer}/W.Bell. Rm{William Robotham - Chief Engineer}/WB.{Mr Brazier/Mr Bell}1/CB.14.4.38. CADILLAC REAR AXLE TESTS. Herewith photographic print illustrating location of failure of "Cadillac" Rear Axle Shaft after 200 hours at 1,000 R.P.M. - load 1 ton, followed by 53 hours at 667 R.P.M. - load 1.5 ton, the load being applied at the centre line of the road wheel. The metallurgical analysis will be supplied direct from the laboratory. A print is also attached of a Singer XI Rear Axle Shaft after approximately 3,000 miles. Rm{William Robotham - Chief Engineer}/W. Bell. | ||