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 cost discrepancy in charging for aluminium sand castings made from reclaimed aero scrap.
| Identifier | ExFiles\Box 142\4\ scan0111 | |
| Date | 30th September 1938 | |
| 1202 To. Mr. S.E./Eb........From RHC.{R. H. Coverley - Production Engineer} Mr. ENT, Hives & Wms. C. Mr. Walker & Mr. Wheeler. RHC.{R. H. Coverley - Production Engineer}1/MC.30.9.38. ALUMINIUM SAND CASTINGS Aluminium Chassis sand castings produced in R.R. Foundry are made almost entirely from reclaimed aluminium aero scrap, consisting of risers and runners having a value of £46.13.0d. per ton. The material for these castings is, however, charged to the Chassis Division at the same price as new aluminium, i.e. £140.0.0d. per ton, with the result that chassis cost is artificially increased. The total weight of sand castings of the Wraith Chassis is approximately 209 lbs., and if such castings were charged at reclaimed instead of new material value, the effect would be to reduce cost of each chassis by £8.14.0d. It is admitted that crankcase top half and clutch casing castings are at present bought out, but even after making due allowance for these items there would still be a cost reduction of £5.5.6d. per chassis. Will you please, therefore, arranged that in future chassis sand castings produced from reclaimed aero material are charged to the Chassis Division at the appropriate figure. RHC.{R. H. Coverley - Production Engineer} | ||