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).
Specification for six experimental Bentley 80 block and crank cases from the Iron Foundry, detailing their material compositions.
| Identifier | ExFiles\Box 124\1\ scan0110 | |
| Date | 18th May 1939 | |
| 1044 Rm.{William Robotham - Chief Engineer} c.HPS.{Horace Percy Smith - Experimental Factory Mgr} c.HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c.Rm{William Robotham - Chief Engineer}/SWL. c.Rm{William Robotham - Chief Engineer}/CMS. RHC{R. H. Coverley - Production Engineer}/Vs.{J. Vickers}5/EP.{G. Eric Platford - Chief Quality Engineer}18.5.39. Iron Foundry. Herewith specification and Block numbers of the six Bentley 80 Block and Crank cases produced by the Iron Foundry for the Experimental Dept. The identification number is stamped on the outside of the Cylinder Bore in the Water jacket. AL 1. Standard 1% Nickel Cast Iron. AL 2. 1% Nickel. .25/.35% Chrome. .25/.35% Molybdenum. AL 3. " " " " AL 4. " " " " AL 5. " " " " AL 6. " " " " RHC{R. H. Coverley - Production Engineer}/Vs.{J. Vickers} Vickers. | ||