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 for a 2-Speed Supercharger Wheelcase assembly.
| Identifier | ExFiles\Box 132\2\ scan0109 | |
| Date | 14th March 1940 | |
| R.R. 1011/1 (2.5) (17267 14-3-40) B.P. 49936 Section 2-Speed Supercharger. Wheelcase. Ref. No. Part Weight No. Off. No. lbs. ozs. Wheelcase 1 D.9017 Stud - wheelcase to gearcase 4 E.51037 " " " 9 D.7762 Bolt - " 2 D.7766 Stud - operating cylinder 4 E.7329 " - coolant pump drive hsg. 4 E.40174 " - petrol pump 4 E.28680 " - top cover 14 D.8064 " - outer race - upper vert-drive 4 A.728 " - retaining plate Mag-drive 6 E.36294 " - hand starter cover 6 D.6309 " - breather connection 2 E.28752 " - magneto flange 6 E.40490 " - starter motor hsg. 5 D.5100 " - bearings-gearshaft 6 D.6412 " - wheelcase 3 D.6202 " - idler wheel bracket 2 D.4260 " - idler brkt. 2 E.26712 " - cam. drive facing 4 E.26189 " - blanking cover 2 E.27557 " - inspection plug 1 E.35109 " - lockplate - starter brg.hsg. 1 E.15317 Inspection plug 1 E.39588 31 0 Nut - inspection plug 2.B.A. 1 K.4307 Grover washer " 2.B.A. 1 K.4506 Bush - front generator drive shaft 1 D.7751 " - rear " 1 D.7753 Screw - locking 1 D.2294 Screw fixed annulus starter motor 1 D.7752 Housing - upper cam drive brgs. 1 D.5096 Plug - sealing wheelcase 2 D.5770 Adaptor - oil feed bpss 2 E.35222 Instruction plate - starter gear 1 E.40624 Screw - instruction plate 1 D.10915 4 E.32706 Other parts on 2-speed S/c wheelcase LOP remain unaffected, and are of similar weight to Merlin III Analysis. | ||