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).
Graph plotting Horse Power and Mean Effective Pressure against RPM for a single-cylinder Bentley engine test.
| Identifier | ExFiles\Box 133\2\ scan0085 | |
| Date | 5th January 1944 guessed | |
| BENTLEY SINGLE CYLINDER TESTS SHEET 2 POWER REQUIRED TO ROTATE ENGINE JACKET WATER MAINTAINED AT 85°C THROUGHOUT TEST. ENGINE UNAVOIDABLY ROTATED IN REVERSE DIRECTION. NO CARBURETTOR NOR EXHAUST PIPES FITTED. NORMAL VALVE TIMING. AEROLITE PISTON. HORSE POWER R.P.M. MEAN EFFECTIVE PRESSURE (LBS/SQ. IN.) M.E.P H.P | ||