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).
Covering note for a chart showing the comparative weights of Bentley crankcase parts in aluminium and magnesium.
| Identifier | ExFiles\Box 88\3\ scan0038 | |
| Date | 20th April 1934 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from RHC.{R. H. Coverley - Production Engineer} [handwritten initials] RHC.{R. H. Coverley - Production Engineer}3/AP.20.4.34. BENTLEY - CRANKCASE WEIGHTS. Herewith chart shewing comparative weights of standard aluminium crankcase top and bottom halves, and magnesium parts as fitted to C.13 Unit. RHC.{R. H. Coverley - Production Engineer} | ||