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).
Confirmation of instruction to cease bump testing on a Wraith frame due to a welded front pan failure.
| Identifier | ExFiles\Box 119\1\ scan0180 | |
| Date | 23th February 1939 | |
| Rm.{William Robotham - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} HPS{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/FWK. BY/HBB. BY/NS.{Norman Scott} 1024 BY.11/G.23.2.39. WRAITH. FRONT PAN - WELDED CONSTRUCTION. Rm{William Robotham - Chief Engineer}/FWK.5/B.15.2.39. We wish to confirm our verbal instruction that no further bump testing should be done to the Wraith frame fitted with a welded front pan. Examination of the broken pan shews that the welding of the bottom plate to the pan failed first, the other damage is a result of this. BY.{R.W. Bailey - Chief Engineer} | ||