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).
Broken valve spring from a Bentley B-114-HK, suspected to be caused by a material flaw.
| Identifier | ExFiles\Box 100\3\ scan0148 | |
| Date | 4th December 1936 | |
| To By.{R.W. Bailey - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} GCLT. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}8/JH.4.12.36. BENTLEY. I sent you a valve spring up last week taken off B-114-HK{Col. T. Harker - Sales} which has broken after a mileage of 14.36 The fracture looked like a flaw in the material. It occured on No.4 exhaust. seemed Rm{William Robotham - Chief Engineer}/G.W.Hancock. | ||