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).
Test results for Piston Alloys A, Q, and C at different temperatures.
| Identifier | ExFiles\Box 76\3\ scan0016 | |
| Date | 26th July 1917 | |
| R R.{Sir Henry Royce} 26. (24H) S.D. (295. 15-3-17) M.P. 176550. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Hives Order No.: Customer's No.: Results of 1st Test. Piston A Alloy (1) 220°C (both) 265°C (one) + 1/4 of other 265°C missing (2) 220°C (both) 265°C (both) missing. Piston Q Alloy (1) 220°C (both) 265°C (one missing) (2) 220°C (both) 265°C (one missing) Piston C Alloy (1) (2) None missing HAA Signed This Sheet must be filed on completion of the work. | ||