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).
Delay in deciding on Wraith performance alterations pending the completion of tests.
| Identifier | ExFiles\Box 108\2\ scan0220 | |
| Date | 17th February 1939 | |
| 600 To-RHS. from Sg.{Arthur F. Sidgreaves - MD} C. to HY.{Tom Haldenby - Plant Engineer}Rm.{William Robotham - Chief Engineer}Hs.{Lord Ernest Hives - Chair}Gx. Wraith Performance. Sg{Arthur F. Sidgreaves - MD}5/E20239 Referring to REC.3/FH.17.2.39, I am afraid it is not possible to give an immediate decision because, as discussed at Derby last week, we must at least be able to try a Wraith first with the alterations. Arrangements have been made for this to be done but I should think it would not be possible to give an answer under three or four weeks. I suggest, therefore, that you go as slowly as is reasonably possible with those parts affected, which I gather are pistons, camshaft and exhaust system. By 'as slowly as xxx is possible' xx I mean without delaying output. Sg.{Arthur F. Sidgreaves - MD} | ||