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).
Recommendation to use silver soldering for oil gallery joints on the Phantom III engine due to failures with soft solder.
| Identifier | ExFiles\Box 91\1\ scan0432 | |
| Date | 16th October 1936 | |
| To By.{R.W. Bailey - Chief Engineer} x300 Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}9/JH.16.10.36. Phantom III. Invariably after an engine has been run on the test bed and stripped down we find the soldered joints on the oil gallery and its branch pipes broken. In cases where we wish to take special precautions, such as Hall's Bentley Unit for the T.T. we have instructed silver soldering for the gallery pipe joints and have not experienced a failure. We would recommend therefore that silver soldered joints or other means be adopted in place of the present soft soldering for the job. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||