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 a specific material for the front roll rod based on test results.
| Identifier | ExFiles\Box 100\1\ scan0225 | |
| Date | 5th January 1939 | |
| [Handwritten] 446 [Typed, struck-through] Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} [Typed, struck-through] C. Rm.{William Robotham - Chief Engineer} [Typed, struck-through] C. Da.{Bernard Day - Chassis Design} [Handwritten] GRY.{Shadwell Grylls} Can I have story of hub material on Wraith Rm{William Robotham - Chief Engineer} [Handwritten] AFM{Anthony F. Martindale} [Typed] B.V. RE: FRONT ROLL ROD MATERIAL. I do not think the amount of running which has been done on this rod is sufficient to justify the use of material to B.E.S.A. - S.76, i.e. standard .4 carbon steel. If, however, it stands up through the 50,000 period, which has been instituted for future work, then I think the proposal will have been justified. I have quite an open mind on this question of material, but it is certain that the amount of running which has been done is not sufficient to justify a steel with so low a maximum stress, as standard for a duty of this kind. BY.{R.W. Bailey - Chief Engineer} [Handwritten] BY | ||