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).
Modifications to a B.60 cylinder head following completed tests.
| Identifier | ExFiles\Box 124\1\ scan0104 | |
| Date | 13th May 1939 | |
| 1044 y 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}3/MH.{M. Huckerby}13.5.39. B.60 CYLINDER HEAD. We have completed the tests on the intermediate stage cylinder head Exs.1383 and would like this now to be modified to Exs.1384 in so far as machining out the combustion chamber in accordance with the latter drawing. The drawing indicates that .030 should be machined off the face; we do not wish, however, to do this until we have tried the stage of modifying the combustion chamber only. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||