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).
Blueprints for modifications to the Wraith III Side Steering system, Section 7070.
| Identifier | ExFiles\Box 9\7\ 07-page163 | |
| Date | 20th April 1938 | |
| HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm.{William Robotham - Chief Engineer} [text crossed out] 650 BY/Ald.{F. Allwood - Experimental Design}11/G.20.4.38. WRAITH 111. SIDE STEERING - SECTION 7070. Please receive herewith two blueprints of each of the following :- S.CD.578 Modification to Rear S.S. Tube joint. Ex.S.688 Spring-Side Steering Tube Rear. 2 off. Ex.S.689 Ball Pad Rear End. 2 off. Ex.S.690 Ball Pad Guide. 2 off. With this scheme, instead of the end of the stem of the ball pad hitting the retaining nut, the spring coming choc-a-bloc forms the limit of travel, as requested on memo Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}2/MH.{M. Huckerby}11.4.38. Will you kindly instruct one set. ael BY/Ald.{F. Allwood - Experimental Design} | ||