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).
Inadequate heat flow and E.A.C. valve spring breakages.
| Identifier | ExFiles\Box 72\1\ scan0177 | |
| Date | 18th January 1924 guessed | |
| contd:- -2- These results seem to indicate that the path for the heat flow from the head to the valve seat is inadequate. E.A.C. VALVE SPRINGS. We have had three cases of breakage. In each case the failure - which appeared purely torsional and not due to flaw - took place at the second coil from the bottom. Hs{Lord Ernest Hives - Chair}/ACL, | ||