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).
Requesting six pistons made from a new 7% copper, 93% aluminium alloy for testing.
| Identifier | ExFiles\Box 37\3\ scan 091 | |
| Date | 6th September 1917 | |
| To Mr. Mills, from BY.{R.W. Bailey - Chief Engineer} Copy to EFC. 6th September, 1917. BY1/G6917. RE PISTONS - X.3177. Will you kindly instruct the Works to hand over to Mr. Hives six pistons made in 7% copper, 93% aluminium alloy, that is to say, it is the B4 alloy omitting tin and zinc. We are very anxious to get this test running at an early date, as the Works find that the alloy above considerably helps the Foundry in producing castings. BY.{R.W. Bailey - Chief Engineer} | ||