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).
Flawed and broken balance arm in the Phantom III servo, suspected to be caused by a forging defect.
| Identifier | ExFiles\Box 95\4\ scan0133 | |
| Date | 9th October 1936 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} x361 Cricklewood, Oct. 9th, 1936. Phantom III - Servo. The test Dept. tester, Lewis, showed me yesterday a balance arm of the servo broken through the fulcrum hole. There was a flaw on the top ridge spreading down fully 1/8". He reports having found two more with cracks at the same point. It would appear that the flaws are being caused during the forging, the metal being too cold. Mx.{John H Maddocks - Chief Proving Officer} will probably take the matter up with you as Lewis has reported same to him. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||