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).
Alterations to the dimensions of flanges on Spectre and Wraith gearboxes.
| Identifier | ExFiles\Box 94\1\ scan0060 | |
| Date | 5th November 1934 | |
| +4694 328 GRY{Shadwell Grylls} To DY.{F R Danby} from HDY.{William Hardy} c. Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} Day. RRO. HDY.{William Hardy}4/HP.5.11.34. SpectreCodename for Phantom III and Wraith Gearboxes. With regard to the casing for this box, we notice that there are several flanges which appear too thin on the casting, such as that on the front end of the box at the top and also those on the pots on the ends of the arms. The dimensions as given on G.81560 for all of these are .150. We think that these should be .200. Any other flanges on the casing which are less than .200 should be altered to agree. In the case of the Wraith we should say that .175 would be a suitable dimension. Would you kindly include these alterations in the instructions for the third SpectreCodename for Phantom III box. HDY.{William Hardy} | ||