Secret memo regarding a modification to the Wraith III Gearbox, specifically deleting plugs for selector rods.
| Identifier | ExFiles\Box 8\11\ 11-page076 | |
| Date | 22th March 1937 | |
| Smith 628 BY. {R.W. Bailey - Chief Engineer} SECRET. C. F. {Mr Friese} B. Ba. Rm. {William Robotham - Chief Engineer} LPS. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} 6/MP.22.3.37. Wraith III Gearbox. We send herewith N.Sch.5095 showing a modification to the diaphragm which deletes the plugs for the holes for the top and 3rd and reverse gear selector rods. These plugs are disliked by the Experimental Dept. and the scheme we now send is preferred by them. There is to be no counterbore in the bearing for the reverse selector rod. This modification can be brought on at the first convenient opportunity. It is not essential that it should be on the first Wraith III. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} N.Sch.5095 herewith. | ||
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).