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).
Performance test report of a machine, detailing output at various RPMs under cold and hot conditions.
| Identifier | ExFiles\Box 51\1\ Scan122 | |
| Date | 6th November 1918 | |
| ROLLS-ROYCE LIMITED. INSTRUCTIONS. To_____________________19__ Order No________________ Customer's No. 2 at 1460 rpm, falling to about 4.5a at 4000 rpm, on the cold battery volt-ampere characteristic. Normal hot performance The machine was now run for four hours at maximum output, the final carcase temperature being 64°C. O.C. volts. The speed for 10 volts was about 565 rpm & for 17 volts, 753 rpm. Output On the hot battery characteristic, the machine now cut in at 665 rpm & delivered 10.5a at 1500 rpm, which fell to 5.0a at 4000 rpm. Signed_____________________ This Sheet must be filed on completion of the work. RR 338 (500 Bks.) (SP {Mr Spinney} 152. 6-11-18.) MP 197880 | ||