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).
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/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} | ||