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).
Piston leakage and proposing a change in testing methodology from various speeds to various pressures.
| Identifier | ExFiles\Box 66\1\ scan0115 | |
| Date | 14th October 1926 | |
| To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. RG.{Mr Rowledge} BY.{R.W. Bailey - Chief Engineer} X8040 R1/M14.10.26. RE, PISTON LEAKAGE. X.8040 X.858 I imagine that new pistons if well made are very gas tight until a certain pressure occurs on top of the piston, when the rings may collapse. So that instead of leaks at various speeds we ought to try every pressure at normal speed. Other information willbe good, but the above is vital and urgent. R.{Sir Henry Royce} | ||