Listing blueprints for the B.80 3.5 Bore Aluminium engine, detailing components for the crankcase, cylinders, valves and fittings.
| Identifier | ExFiles\Box 124\2\ scan0156 | |
| Date | 1st May 1940 | |
| To Rm. {William Robotham - Chief Engineer} FILE 1044 Rm {William Robotham - Chief Engineer} /CTS. {C. Trot Salt - Carburation} 2/JMS.1.5.40 Rm {William Robotham - Chief Engineer} /HH.9/JH.1.5.40. B.80 3.5 BORE ALUMINIUM. CRANKCASE & CYLINDERS SECTION 5000 VALVES & FITTINGS SECTION 5060 Please receive herewith the following blueprints, Section 5000 4 Prints - RE.807 - Cylinder Liner 8 off per set. 4 Prints - RE.971 - Crankcase & Cylinders 1 off per set. 2 Prints - RE.972 - Stud - Cylinder Head 9 off per set. 2 Prints - RE.973 - Stud - Cylinder Head 40 off per set. 2 Prints - RE.977 - L.O.T. Crankcase & Cylinders. Section 5060 2 Prints - RE. 974 - Exhaust Valve 8 off per set. 2 Prints - RE. 975 - Top Washer Exhaust Spring 8 Off per set. 2 Prints - RE. 976 - Washer Exhaust Valve Spring 8 off per set. 2 Prints - RE. 978 - L.O.P. - Valves & Fittings This engine was projected by Rm {William Robotham - Chief Engineer} in memo Rm. {William Robotham - Chief Engineer} 14/ML.15.4.40. It will necessitate a new water jacket core box, and a new tappet chamber core box, to be used in conjunction with the new pattern now being produced for the B.80 3¼ bore EB5079. This completes the instructions for the above. Kindly instruct as required. Rm {William Robotham - Chief Engineer} /HH. | ||
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).