Two alternative manufacturing schemes for the Wraith III gearbox distance piece.
| Identifier | ExFiles\Box 8\11\ 11-page097 | |
| Date | 15th September 1937 | |
| C. Dept. C. Rm. {William Robotham - Chief Engineer} C. H.S. 628 DA. {Bernard Day - Chassis Design} 6/G.15.9.37. WRAITH III - GEARBOX. Referring to HPS {Horace Percy Smith - Experimental Factory Mgr} /RH. {R. Hollingworth} 1/VS. {J. Vickers} 13.9.37. (copy attached) would you please delete the adjustment washers, and one distance piece, referred to, in accordance with this note. With reference to the distance piece, we suggest that when making it solid with the 1st. speed wheel, it can either be done by counter boring from one end thus .- or since the shaft serrations are not lengthened, if the gear serrations are carried right through there will be blank spaces between each gear serration, and the oil holes can be drilled into these, thus .- Will you please adopt the most economical scheme. | ||
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).