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).
Modification notice for Wraith III chassis cruciform plates to increase clearance for the exhaust system.
| Identifier | ExFiles\Box 8\10\ 10-page169 | |
| Date | 18th December 1937 | |
| To RHC{R. H. Coverley - Production Engineer}/CAN. C. Roy{Sir Henry Royce}/Ms. (crossed out) C. RHC{R. H. Coverley - Production Engineer} (crossed out) C. HPS{Horace Percy Smith - Experimental Factory Mgr} (crossed out) C. Rm{William Robotham - Chief Engineer}/Crys. (crossed out) C. RHC{R. H. Coverley - Production Engineer}/SS{S. Smith} (crossed out) 627 WRAITH III CHASSIS - 6 SETS. FRAME AND FITTINGS - SEC:7000. ASSEMBLED FRAME SUPPLIED BY RUBERY OWNS. It has been found necessary to increase the depth of the holes in the cruciform plates, for the exhaust system by 1", to ensure clearance is obtained after engine movement, sagging of support and pipes, and assembly limits have been taken into consideration. In accordance with E.CD.258, we have modified the following to suit, and attach herewith three blue prints of each for Rubery Owens :- FW.1213 Front Plate - Cruciform Torque Member. 1 off. FW.1214 Rear " " " " 1 " FW.1216 L.H. " " " " 1 " Any parts produced should be altered. Referring to FW.1213, we have also deleted the 1" dia. hole in the centre of the plate, for the engine tie rod. In accordance with L.S/C.23.11.37. this is not now required. BY/HEB.{H. Biraben} (Stamp: RECEIVED) | ||