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).
Using magnesium for pistons to save weight in 6-cylinder car engines, comparing a German design.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 170 | |
| Date | 27th March 1928 | |
| BY.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} ) FROM R.{Sir Henry Royce} HS.{Lord Ernest Hives - Chair} RG.{Mr Rowledge}) (At Le CanadelHenry Royce's French residence.) C. to RJ. WGR. FL. R5/M27.3.28. REC'D.{John DeLooze - Company Secretary} & DESPATCHED FROM WW. 30.3.28. ORIGINAL x.4112 y3996 x1506 MAGNESIUM, ELECTRON, etc. PISTONS, etc. Still watch progress with magnesium, but on cars we must save money. HL. says magnesium will not save weight for equal strength. In our 6 cyl. car engines it is so enormously important to have the very lightest possible piston and little end, that magnesium should be tried now, and from time to time. It will be noticed that the German piston Z.Nr.K.1077. is very like ours. I send this print to Mr. Elliott. The scraper ring is drained top and bottom. We don't favour this, but it might be tried and confirmed as wrong. R.{Sir Henry Royce} | ||