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 comparing M.E.P. and Horse Power curves for Goshawk II and 40/50 engines from bench and dynamometer tests.
| Identifier | WestWitteringFiles\J\May1923\ Scan53 | |
| Date | 14th February 1923 | |
| M.E.P. & POWER CURVES GOSHAWK II & 40/50 (26 CU. INS. DISPLACEMENT) GII. ALL CURVES TAKEN WITH STANDARD EXHAUST SYSTEMS ON THE BENCH & DYNAMOMETER. 40/50. 26 CU. INS. DISPLACEMENT. ALL CURVES TAKEN WITH CUT OUT OPEN DYNAMOMETER & BENCH TESTS TAKEN FROM THE SAME ENGINES, THE CURVES BEING AN AVERAGE OF 6 CARS OF THE SAME PERIOD AS THE GOSHAWK. DYNAMOMETER READINGS AVERAGE OF 6 CARS FOR MONTH ENDING FEB. 14TH 1923. BENCH READING FROM EXPERIMENTAL TESTS & WORKS UNIT TEST. HORSE POWER M.E.P. (LBS PER SQ.") R.P.M. M.E.P. GII BENCH M.E.P. 40/50 BENCH M.E.P. GII DYNAMOMETER M.E.P. 40/50 DYNAMOMETER HP. 40/50 BENCH HP. GII BENCH HP. 40/50 DYNAMOMETER HP. GII DYNAMOMETER ROLLS-ROYCE LIMITED | ||