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 the B.80 Aluminium 3.5 Bore, RE971 Crankcase & Cylinders.
| Identifier | ExFiles\Box 124\2\ scan0161 | |
| Date | 7th May 1940 | |
| FILE 1044 Rm{William Robotham - Chief Engineer}/HH.2/7.5.40. To Rm.{William Robotham - Chief Engineer} c to Mr Walker Pattern Shop. B.80 Aluminium 3.5 Bore. RE971 Crankcase & Cylinders. In order to keep this detail clear until such time that we are able to make a completed drawing, the following modifications have been caried out. Outside of cylinder barrels increased in dia., and scollops deleted from tappet chamber. For all other information refer to EB5079 and EB3950. Rm{William Robotham - Chief Engineer}/HH. | ||