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 for an experimental modification to the Phantom III rear brakes and hubs.
| Identifier | ExFiles\Box 92\4\ scan0386 | |
| Date | 4th March 1938 | |
| 306 HPS.{Horace Percy Smith - Experimental Factory Mgr} [crossed out] c. Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} [crossed out] BY/Ald.{F. Allwood - Experimental Design}1/G.4.3.38. PHANTOM 111. REAR BRAKES. SECTION 6130. REAR HUBS. SECTION 6170. Please receive herewith two blueprints of each of the following (3 prints where marked *) :- SECTION 6170. * Ex.S.545 Brake Drum with Cast-in End Plate. 2 off. Ex.S.546 End Plate for Brake Drum. 2 off. SECTION 6130. * Ex.S.547 Brake Shoe (Rear). 4 off. * Ex.S.548 Brake Lining (Rear). 8 off. Ex.S.549 Distance Piece for Brake Shoes. 4 off. The following existing parts will also be required :- G.83258 Bolt 24 off. Please note that on the drawing Ex.S.547 the material called for is S/M.{Mr Moon / Mr Moore} but for the purpose of this experiment and to save the cost of dies these shoes should be made in Cast Steel. The above pieces replace the following :- SECTION 6170. G.81900 End Plate. 2 off. G.85624 Brake Drum. 2 off. SECTION 6130. G.84849 Brake Shoe. 2 off. G.84850 Brake Shoe. 2 off. G.85625 Brake Lining. 8 off. The above are in accordance with memo Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}4/MH.{M. Huckerby}22.2.38. Will you kindly instruct one set which when made should be fitted to chassis 39-EX. Ald{F. Allwood - Experimental Design} BY/Ald.{F. Allwood - Experimental Design} | ||