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 list detailing blueprints and requirements for the Wraith III chassis dynamo drive and armature.
| Identifier | ExFiles\Box 168a\3\ img123 | |
| Date | 22th October 1938 | |
| HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/SWdl.{Len H. Swindell} 6142. BY/Ald.{F. Allwood - Experimental Design}10/G.22.10.38. WRAITH III. CHASSIS. DYNAMO ARMATURE - SECTION 8070. DYNAMO DRIVE - SECTION 5100. Please receive herewith two blueprints of each of the following :- S.CD.940 Flexible Coupling - Dynamo Drive. SECTION 8070. Ex.S.1143 Outer Flange - Rubber Block. 1 off. Ex.S.1144 Inner " " 1 off. Ex.S.1145 Coupling Block - Dynamo Drive. 1 off. Ex.S.1146-50 Adj. Washer for Coupling. - 4 off to suit. SECTION 5100. * Ex.S.1151 Coupling Plate - Dynamo Drive. 1 off. x Ex.S.1152 Connecting Shaft. 1 off. y Ex.S.1153 Stiffener for Coupling Plate. 1 off. Ex.S.1154 Coupling Plate - Dynamo Drive. 1 off. The following parts will also be required :- SECTION 8070. DW.819 Dynamo Fan. 1 off. DW.820 Coupling for Fan. 1 off. DW.821 Bolt for Fan Coupling. 4 off. K.4307 Nut " " 4 off. KB.2726M Bolt for Coupling Outer Flange. 4 off. K.4404 M Plain Washer for ..do.. 4 off. K.9006 M Spring Washer for ..do.. 4 off. K.4307 M Nut for Coupling Outer Flange. 4 off. SECTION 5100. KB.1858 Rivet for Coupling Plate. 4 off. The following parts are not required :- SECTION 8070. DB.{Donald Bastow - Suspensions}1091 DC. Fan for Dynamo. 1 off. DB.{Donald Bastow - Suspensions}1096 Coupling for Fan. 1 off. 2726 Bolt for Fan. 4 off. " Nut for Fan. 4 off. | ||