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).
Efficiency of servos on a 103-MC, and recommending direct measurement when in doubt.
| Identifier | ExFiles\Box 67\1\ scan0012 | |
| Date | 16th November 1925 | |
| To BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} c. to EP.{G. Eric Platford - Chief Quality Engineer} 48370 HsL/LG16.11.25. EFFICIENCY OF SERVOS. X 9370 X5370 X4358 From the appearance of the Halo taken off 103-MC we should say that these were not the cause of the inefficient servo. We should like to know whether any figures were taken of the efficiency of the servo. In the Experimental Dept. instruction on 4-wheel brakes, we gave complete particulars of how the efficiency could be measured. We have also supplied sets of spring balances to the Test Dept. We recommend that whenever there is any doubt as to the efficiency of the servo, the first and obvious thing to do is to measure the actual efficiency. Hs.{Lord Ernest Hives - Chair} | ||