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).
The occurrence of engine thuds, requesting an example be set aside for experimental study.
| Identifier | ExFiles\Box 65\4\ scan0337 | |
| Date | 17th May 1926 | |
| S/W. Hs.{Lord Ernest Hives - Chair} Copies to:- EP.{G. Eric Platford - Chief Quality Engineer} JLE.{J. Lee Evans - Chassis Test Manager} CWB1/GM/17-5-26. Engine thuds. Reference Hs{Lord Ernest Hives - Chair}3/LG8526. I will bring to your notice any good examples of this feature which arises. So far I am glad to say that the feature has been practically absent from the Phantom, but there has been one or two instances recently. I will endeavour to arrange for one to be laid aside for experimental attention. Will EP.{G. Eric Platford - Chief Quality Engineer} or JLE.{J. Lee Evans - Chassis Test Manager} please notify me immediately if they find an engine with strong evidences of a thud. CWB. | ||