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).
Conclusion of actuator load tests, detailing maximum loads and current draw for different models.
Identifier | ExFiles\Box 34\3\ Scan058 | |
Date | 13th April 1920 guessed | |
-4- Contd. Conclusion. If the load at end of actuator arm does not exceed 65 - 70% of maximum for standard actuator and 70-75% for 400 x 2 turn actuator, there is no noticeable lag in the pulling on of actuator. Maximum load lifted - coils cold - of actuators tested. (a) 400 x 2 turn actuator 5 lbs. 13 ozs. (b) Standard " 2 lbs. 10 ozs. { Current taken by main switch & actuator (a) = 7.30 amps. { " " "/ actuator (a) = 6.20 amps. { Amp. turns actuator (a) = 5000 { Current taken by main switch & actuator (b) = 3.83 amps. { " " " actuator (b) = 2.63 amps. { Amp. turns actuator (b) = 3200 (Sgd). R.C.S. Jamie. | ||