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).
The replacement of wheel discs and nuts for the Wraith III model, including a list of new features.
| Identifier | ExFiles\Box 108\2\ scan0133 | |
| Date | 1st September 1938 | |
| 600 also 1159. BY/Ald.{F. Allwood - Experimental Design}11/G.1.9.38. c. Rm{William Robotham - Chief Engineer}/GRL. WRAITH 111. SECTION 6170. REAR HUB. SECTION 7044. FRONT HUB. Please receive herewith two blueprints of each of the following drawings :- Ex.S.984 Wheel Disc. 4 off. Ex.S.985 Wheel nut - R.H. 2 off. Ex.S.986 Wheel nut - L.H. 2 off. These drawings replace the following :- Ex.S.785 Wheel Disc. 4 off. Ex.S.852 Wheel Nut. R.H. 2 off. Ex.S.853 Wheel Nut L.H. 2 off. The new discs have the following features :- (1). A more flexible centre. (2). Water drain slots eliminated. (3). Painted area is 'broken up' by an additional line. Rm{William Robotham - Chief Engineer}/GRL. is obtaining the spinnings for discs Ex.S.984. Kindly instruct/l set of the remainder. (1 print of Ex.S.984 to Rm{William Robotham - Chief Engineer}/GRL.) All BY/Ald.{F. Allwood - Experimental Design} | ||