The modification of a B.60 cylinder head by machining away the turbulent lip.
| Identifier | ExFiles\Box 124\1\ scan0137 | |
| Date | 5th June 1939 | |
| 10HH To HPS. {Horace Percy Smith - Experimental Factory Mgr} from Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} c. HPS {Horace Percy Smith - Experimental Factory Mgr} /RH. {R. Hollingworth} Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} 2/MH. {M. Huckerby} 5.6.39. B.60 CYLINDER HEAD. In accordance with the memo By {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} 1/AW. 1.6.39, will you please modify the cylinder head EXS.1384 to EXS.1758, whereby the turbulent lip is machined away. The cylinder head is available for the job. Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} | ||
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).