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).
Suitability of bump testing for spot-welded components on the Wraith Bumper Chassis.
| Identifier | ExFiles\Box 119\1\ scan0170 | |
| Date | 18th January 1939 | |
| 1024 To RHC{R. H. Coverley - Production Engineer}/DWB.{D. W. Brown} from Rm{William Robotham - Chief Engineer}/FWK. Rm{William Robotham - Chief Engineer}/FWK.20/dH.{D. Henderson - Showroom}18.1.39. WRAITH BUMPER CHASSIS. You have submitted to us several spot welded components of the above chassis, asking us to bump them. Normally we do not bump such components as radiators, bonnets etc. as we consider that the test is far too severe for these items when they are not braced by head lamp supports and wings etc. In view of this, will you please consider what you want doing with the bonnet side strips, and radiator fan guard which we still have in the bump house. Rm{William Robotham - Chief Engineer}/FWK. | ||