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).
Page 2 of a regulator testing procedure, detailing current, voltage, and RPM specifications.
| Identifier | ExFiles\Box 166\2\ img244 | |
| Date | 18th January 1939 | |
| -2- Rm{William Robotham - Chief Engineer}/EC.19/JH.18.1.39. The current should then lie between the limits 3.0 and 8.5 amperes. Note. Should as a result of tests (1) and (2) the adjustment of the regulator appear wrong, it may be checked by observing the open circuit voltage, when running, at 4,000 r.p.m. This should fall between 15.9 and 16.3 volts. (3) With the cover on, the regulator shall now be run on load, on the 'A1' circuit at 13.5 volts as in (1) and the run continued for two hours. At the end of this time, tests (1) and (2) shall be repeated when the output shall not have increased over the corresponding ones specified in those tests, by more than 1.5 amperes. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||