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).
Parts required and not required for a Wraith lll Water Pump Drive experiment.
| Identifier | ExFiles\Box 149a\1\ scan0227 | |
| Date | 31th May 1938 | |
| [text crossed out] HPS.{Horace Percy Smith - Experimental Factory Mgr} [/text crossed out] c. Rm.{William Robotham - Chief Engineer} [text crossed out] C.Rm{William Robotham - Chief Engineer}/Sect. [/text crossed out] BY/Ald.{F. Allwood - Experimental Design}15/G.31.5.38. [handwritten] 1269 [/handwritten] WRAITH lll. WATER PUMP DRIVE. Please receive herewith two blueprints of the following :- Ex.S.786 Packing Washer 4 off. Ex.S.787 Bolt 4 off. [large handwritten signature 'Rm{William Robotham - Chief Engineer}' obscures part of the text] The following standard and existing parts will also be required :- Ex.S.454 Coupling 1 off. Ex.S.455 Drive Shaft 1 off. Ex.S.456 Assembly - K.4602 S. Pin 2 off. K.4404 Plain Washer 2 off. K.4206 Nut 2 off. The following will not be required :- EW.1023 Bolt 2 off. KB.1966 Rivet 2 off. The remainder of the parts are standard Wraith shown on EW.1526. This completes instructions for the experiment issued on our memo BY/Ald.{F. Allwood - Experimental Design}7/G.10.5.38. [handwritten signature] ald{F. Allwood - Experimental Design} [/handwritten signature] BY/Ald.{F. Allwood - Experimental Design} | ||