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).
Experimental B.60 engine with a 3¾ inch bore.
| Identifier | ExFiles\Box 123\5\ scan0106 | |
| Date | 3rd October 1938 | |
| c. Rm.{William Robotham - Chief Engineer} Liles B.60 ENGINE - 3¾ BORE. DA.{Bernard Day - Chassis Design}3/G.3.10.38. 1044 Experimental wish to try an experimental engine of the B.60 type with a 3¾ bore. Herewith is FD.{Frank Dodd - Bodies}257 which shews the increased bore obtained by modifying the existing pattern temporarily, so as to get a casting, the pattern being then returned to its present form. The points, the design soundness of which is in doubt, are noted on the drawing. It is proposed to try the present head unchanged, which will give a compression ratio of 7.15 to 1. DA.{Bernard Day - Chassis Design} | ||