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).
Secret memo regarding the testing of EAC Ignition Governor Springs to determine their rating and revise production limits.
| Identifier | ExFiles\Box 65\1\ scan0082 | |
| Date | 2nd February 1925 | |
| V 8685 To Sft.{Mr Swift} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} S E C R E T. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG2. 2. 25. EAC. IGNITION GOVERNOR SPRINGS. With reference to the above springs, we have only had a few of these made. They were adapted from a spring got out by the D.O., which was altered by the Expl: Dept: As a result of this we do not know exactly what the rating of the spring yet to be when it is made by expert spring makers or what the probable limits of variation between similar springs will be. We should therefore be obliged if you would let us have some of the first batch of springs which come in, to test on our rig and on the governor, when we will revise the limits we have previously given for the springs and hand the rig over to you to carry out the Production tests. All the limits we have previously given with regard to the springs, are subject to alteration. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||