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).
Costs of various aluminium castings for different vehicle parts.
| Identifier | ExFiles\Box 156\1\ scan0328 | |
| Date | 23th November 1937 | |
| Rm. {William Robotham - Chief Engineer} from Hs {Lord Ernest Hives - Chair} /LS. 1328 Hs. {Lord Ernest Hives - Chair} /LS.1/T23.11.37. COSTS OF CASTINGS. Further to our conversation of the other day, the following figures might be of some interest. 1. Aluminium castings The cost of various castings made in our Foundry, using RR.50 and with 215% overheads, works out as follows:- Piece. Machined Shillings per lb weight machined weight. P.III Crankcase top half 130 5.8 P.III Cylinder Head 82 5.3 Bentley & 25/30 Clutch Housing 10.9 4.1 P.III Crankcase lower half 28.1 3.6 P.III Gearbox castings 32.8 3.3 Bentley wheelcase 5 3.0 Bentley gearbox castings 23.6 2.8 Bentley Crankcase top half 70 2.6 Bentley dashboard 28.6 2.4 Bentley Crankcase lower half 29.5 2.3 P.III Rocker covers 11.4 2.2 P.III Dashboard 42 1.8 contd: | ||