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).
Modification for stiffened tappet covers on the B.60 and experimental B.80 engines.
| Identifier | ExFiles\Box 124\1\ scan0047 | |
| Date | 17th March 1939 | |
| RV/NS{Norman Scott} 1044 c. Rm.{William Robotham - Chief Engineer} c. Tmy/Swdl.{Len H. Swindell} DA.{Bernard Day - Chassis Design}2/G.17.3.39. Files B.80. STIFFENED TAPPET COVERS. Please receive herewith :- Slide E.CD.1244 Stiffened Tappet Covers. B.80. This modification follows the lines of the revised tappet covers, designed for the B.60 engine on E.CD.1243. Will you please detail and instruct for the experimental B.80 engines. The only new parts are the covers and the joint washers, the crankcase is not altered. DA.{Bernard Day - Chassis Design} | ||