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 E.A.C. fan belt that failed during engine testing.
| Identifier | ExFiles\Box 66a\4\ scan0047 | |
| Date | 1st May 1925 | |
| Hs.{Lord Ernest Hives - Chair} By.{R.W. Bailey - Chief Engineer} X8220 Mx{John H Maddocks - Chief Proving Officer}/McM4/MMC6 .5.25. Re: E.A.C. FAN BELT. We send you herewith a piece of belting that has been in use on the Unit Test bed. It has been driving an old type fan for about 70 hours, and a reinforced fan for about another 70 hours, a total of roughly 16800000 revs. of engine, at varying speeds. It broke while the engine was on test, it will be seen that all the links are badly worn. Mx{John H Maddocks - Chief Proving Officer}/McM. McM | ||