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).
Approximate working times and material costs to produce patterns for a Conventional Line 8 Engine crankcase.
| Identifier | ExFiles\Box 146\4\ scan0017 | |
| Date | 14th February 1939 | |
| 1260. RM.{William Robotham - Chief Engineer} c.c HPS.{Horace Percy Smith - Experimental Factory Mgr} [struck through] Sft{Mr Swift}/EW/WP. 14.2.39. PATTERN - CONVENTIONAL LINE 8 ENGINE. With further reference to your memo RM.{William Robotham - Chief Engineer}2/R of 26.1.39 re the above, we have now received final drawings for the Crankcase and Cylinder Block, so we are in a position to give you approximate times required to produce combined pattern for both types of Cylinder Head. (1). Crankcase complete for Conventional Engine Mat £20 £233 working time - 1,550 hours. (2). Crankcase change unit to produce high power Head Matls - £100 working time - 650 hours. Sft{Mr Swift}/EW. | ||