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).
Cost breakdown and comparison for Bentley brake systems.
| Identifier | ExFiles\Box 85\1\ scan0206 | |
| Date | 25th September 1936 | |
| Hs{Lord Ernest Hives - Chair}/AEM.11/KW.25.9.36. Bentley brake Costs. | | Material | Labour | Overheads (175%) | Total | |---|---|---|---|---| | Hand Brake Equal:shaft | 11 2 | 16 11 | | | | Rear Brakes Inter. Levers | 10 0 | 13 3 | | | | Rear Brakes | 3 16 7 | 3 16 2 | | | | Rear Brakes Equal:shaft | 1 3 2 | 1 7 3 | | | | Front " " " | 9 9 | 16 3 | | | | Front Brakes | 2 8 4 | 1 8 6 | | | | Totals | 8 19 0 | 8 18 4 | 15 12 0 | 33 2 4 | | | | | Total | |---|---|---|---| | Girling Front & Rear Brakes completely assembled | Quotation | | 9 7 6 | | 2 No. Ph.III Front Equalisers | 1 15 8 | 2 0 10 | | | 1/2 Rear Brakes Inter. Shaft (including 2 No. brake ropes) | 2 0 | 6 8 | | | Totals | 2 0 8 | 2 7 6 | 4 3 3 | 8 11 5 | | Torsion Shaft (Cost Office figure) | | | 2 18 2 | | | | | 20 17 1 | | Less cost of drilling front axle | | | 8 9 | | Less cost of drilling and forming hole for front equaliser | unknown amount | | | | | | | £20 8 4 | | Difference between above systems | | | £12 14 0 | | ||