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 an experimental spot-welded front pan on a Wraith Bumper Chassis during testing.
| Identifier | ExFiles\Box 119\1\ scan0179 | |
| Date | 15th February 1939 | |
| 102H To BY.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/FWK. c. RHC.{R. H. Coverley - Production Engineer} c. HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/FWK.5/B.15.2.39. WRAITH BUMPER CHASSIS. We have been bumping the front end of the above chassis for the purpose of testing an experimental spot-welded front pan. The first failure occurred after 4 1/2 hrs. and on your advice a new pan was fitted. After 1 1/2 hrs. this new one failed in an exactly similar position to the first one, i.e. cracks round the front bearing of the N.S. lower triangle lever. Since we are running the chassis primarily for testing the pan, we would like to know whether you desire a third one fitted and tested, or whether the above results are all you require. Rm{William Robotham - Chief Engineer}/FWK. | ||