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).
Power curve graph for the B.80 8-cylinder engine with open exhaust, plotting BHP, Torque, and MEP against RPM.
| Identifier | ExFiles\Box 124\1\ scan0167 | |
| Date | 24th June 1939 | |
| B.80 UNIT POWER (OPEN EXHAUST) 8 CYLINDER UNIT 3.5" BORE 4.5" STROKE - 5 2/3 LITRES COMPRESSION RATIO = 6.25:1 WEIGHT COMPLETE = 892 LBS. CLUTCH, CASE, FAN & EXHAUST MANIFOLDS Graph Labels: B.H.P (Y-Axis Left) TORQUE LBS FT (Y-Axis Left, Inner) B.M.E.P LBS/SQ.IN. (Y-Axis Right) R.P.M (X-Axis) Curves: M.E.P TORQUE B.H.P Bottom Right Corner: S.W.D.L 24.6.39 | ||