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).
Instructions for modifying ignition distributors on Wraith engines, listing parts to be fitted and removed.
| Identifier | ExFiles\Box 168\3\ img037 | |
| Date | 2nd December 1938 | |
| To: WPC. c. Fm/EC. c. RHC{R. H. Coverley - Production Engineer}/Wd.{Mr Wood/Mr Whitehead}(O.P.Dept.). c. Rey/bear for HDS. 6119 BY/RD.4/B.2.12.38. WRAITH. ----- IGNITION DISTRIBUTORS. SECTION S120. We wish to fit R.R. Distributors to 6 engines, and units to LOP. DW.426 should be obtained from RHC{R. H. Coverley - Production Engineer}/SS{S. Smith}, and modified as follows :- (1) Longer Earthing Strip. (2) New Spring and Anchorage. (x) We hand you herewith blueprints of the following new parts which are to be fitted :- DW.870 - Collar. 1 off. DW.871 - Anchor. 1 off. DW.873 - Spring. 1 off. DB.{Donald Bastow - Suspensions}1724 - Earth Strip. 1 off. K.4301A - 5 BA. Nut. 2 off. K.4401A - 5 BA. Washer. 1 off. K.9003A - 5 BA. Spring Washer. 1 off. K.1707A - 5 BA. Screw. 1 off. The following parts are to be removed and replaced by the above :- D.71630 - Nut. 1 off. D.76212 - Earth Strip. 1 off. DW.416 - Anchor. 1 off. -Contd- | ||