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).
Use of various aluminium alloys for weight saving in aero engines and car parts.
| Identifier | ExFiles\Box 148\3\ scan0035 | |
| Date | 13th February 1926 | |
| RG.{Mr Rowledge} To BY.{R.W. Bailey - Chief Engineer} } FROM R.{Sir Henry Royce} Hs.{Lord Ernest Hives - Chair} } LE CANADELHenry Royce's French residence. c.c. to CJ. BY.{R.W. Bailey - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} $1476 R2/M13.2.26. ALUMINIUM ALLOYS AND WEIGHT SAVING. X.3039 X.2808+1476 Regarding aero engines, and car high speed parts, it is evident that we must do all that is possible to use duralumin insteadof steel, magnalium instead of the heavier alum. alloys for crankcases, and magnesium instead of the heavier alum. alloys for pistons. BY.{R.W. Bailey - Chief Engineer} sent us the figure of 2.96 for crankchamber alloy. If this refers to the alloy with much zinc in solution, I fear it is nearly 3.2. Anyway the magnalium type would be 15% lighter. It seems desirable that we try this, and the magnesium piston metal for pistons. Something should be moving at once. R.{Sir Henry Royce} | ||