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).
Summary report on fitting a unit with a modified crankshaft, specific bearings, and completing an endurance test.
| Identifier | ExFiles\Box 155\2\ scan0066 | |
| Date | 16th March 1937 | |
| -3- Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}10/AP.16.3.37. B.9. unit continued Summary report of work carried out on lines of separate memo dealing with this. Report to P/Psn. on valve springs and bounce with and without tappet springs. B.19. Following B.9., fit this unit which has following special and new parts. Crankshaft with 2- .125 holes in each pin. 3 std. and 3 A.C.G.S. big end bearings. Die cast main bearings in A.C.G.S. Alternate 10 hours full throttle and 1/4 load endurance on Ehtyl petrol. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||