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).
Exhaust box lug failure and the unreliability of sliding joints on exhaust pipes.
| Identifier | WestWitteringFiles\O\2January1926-March1926\ Scan24 | |
| Date | 27th January 1926 guessed | |
| contd :- -2- The lug nearest centre of engine is first broken off and dowel pin is sheared off level with cylinder face. (This happens whether the sliding joint is working or not). The stress is so great between the two ports that it cracks the exhaust box. This, in every case, is underneath which clearly proves the direction the stress takes place. Our experience shows that sliding joints on exhaust pipes are unreliable on anything but straight pipes. We either have troubles from rattles, blowing or sticking. HS{Lord Ernest Hives - Chair}/G.W.Hancock. | ||