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).
Instructing the production of an urgent 'ALUM 80' Unit No.8 engine.
| Identifier | ExFiles\Box 168a\3\ img064 | |
| Date | 7th July 1939 | |
| To-HPC. from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c.c. HFS/EN. c.c. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} c.c. Rm{William Robotham - Chief Engineer}/SDG. c.c. Rm{William Robotham - Chief Engineer}/RO.{C. C. Rose - Export Manager} c.c. Rm{William Robotham - Chief Engineer}/Cbr "ALUM 80" UNIT (NO.8). 3.25 BORE. Will you please instruct for a unit to be produced in accordance with the memo By/CS.1/EN.5.7.39. A second set of the special non-standard parts should be produced to their "rough" stage which can be proceeded with in the event of this type of unit being found satisfactory. This unit is urgent and should take preference over the "Conventional 8" unit No.1 which was instructed to Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}17.5.39. The D.O. instructions are for the complete unit with the exception of the following items:- (1) Dynamo as B.80 unless otherwise specified by Rm{William Robotham - Chief Engineer}/BC. (2) Ignition distributor and wiring - ditto (1). (3) Flywheel and clutch to be specified by Rm{William Robotham - Chief Engineer}/MRC. (4) Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} will supply the Vandervell main bearings. (5) Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} will supply the Stromberg Duplex carburetter. (6) Regarding the crank damper, this will be specified later. The crank is instructed with the original nose end so that to get the engine on test we could fit either the A.R. harmonic type or the Studebaker type of which three sets are being made. (7) Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} will supply the General oil filter. (8) The strengthened front mounting plate to be fitted, i.e. .176 section as against original .144. | ||