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 Bentley exhaust downtake pipe and arranging a 15,000-mile test for a new aluminized mild steel version.
| Identifier | ExFiles\Box 83\1\ scan0348 | |
| Date | 18th January 1937 | |
| SECRET To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Whym. BENTLEY EXHAUST SYSTEMS. We have received a memo from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} to the effect that the exhaust downtake pipe has broken just above the expansion box, a clean break, not burnt. He also states that the fitters did not fasten the stay from the front expansion box to the crankcase. As this engine was fitted with the raised mounting the increased engine movement has probably put too great a strain on the downtake pipe due to no location between the expansion box and the crankcase. Will you therefore please build up and fit to 3.B.1V. for 15,000 miles test another downtake pipe, front expansion box and intermediate pipe made in MILD STEEL and "Aluminized". Rm{William Robotham - Chief Engineer}/Whym | ||