Cost breakdown and comparison for a Phantom III Clutch Plate Assembly.
| Identifier | ExFiles\Box 148\5\ scan0173 | |
| Date | 9th July 1937 | |
| To Hs. {Lord Ernest Hives - Chair} 1260 Rm {William Robotham - Chief Engineer} /NRC. {N. R. Chandler} 6/JH.9.7.37. Phantom III Clutch Plate Assembly. Arrg. drawing G.84810. Our works cost is £2.6.10. This includes 175% overheads on all labour. The time allowance for Assembly etc. is generous. Details. Cost, shillings. Hub 14.829. Plate 12.5 Oil Thrower .667 Facings 8.600 Rivets (facing) 2.048 " (hub) .252 " (oil thrower) .048 Assembly 7.920. TOTAL 46.864 or £2.6.10 works cost. Comparing this with the EX.27309 plate quoted for by Borg & Beck, we find the following :- 46.864. Less. for hub, rivets and oil thrower, supplied by R.R. 15.544 ______ 31.320 Pluss. Retail price 6 cushion springs 3.250 Plus. Difference between 12/6 and 16/6 for plate 4 ______ 38.570 We consider that £1 18.7 would represent a works cost, with generous allowance for overheads and assembly time, so that the contract price should be this figure plus profit. Rm {William Robotham - Chief Engineer} /NRC. {N. R. Chandler} | ||
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).