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).
Reducing the thickness of the Bentley bottom half crankcase to save weight.
| Identifier | ExFiles\Box 132\3\ scan0029 | |
| Date | 7th December 1934 | |
| ROY.{Sir Henry Royce} C. E.{Mr Elliott - Chief Engineer} C. Hs.{Lord Ernest Hives - Chair} C. RHC.{R. H. Coverley - Production Engineer} K216 Rm{William Robotham - Chief Engineer} BY/Cgh.{W Clough}1/G.7.12.34. BOTTOM HALF CRANKCASE - BENTLEY Referring to ROY.{Sir Henry Royce}7/MG.5.12.34. and High Duty Alloys Ltd. letter of Decr. 4th. (ref. WCD/CS.), we are still of the opinion that the thickness now specified by Mr. Devereux viz. .1875 plus or minus .015 will give a sufficient reduction in weight to justify the attempt. Actually I estimate that there will be a saving even on these figures of 7 lbs. against an aluminium alloy casting with the thickness reduced to .150. Would you therefore kindly issue instructions to High Duty Alloys accordingly. BY BY/Dgh. | ||