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 of 'V' Series average power curves with the cut-out closed, showing Brake Horse Power and B.M.E.P. vs engine R.P.M.
| Identifier | ExFiles\Box 69\4\ scan0304 | |
| Date | 27th January 1926 | |
| "V" SERIES AVERAGE POWER CURVES. Y8771 AVERAGES TAKEN OF PRODUCTION UNIT TEST TAKEN BETWEEN 11-2-25 AND 12-3-25. " " PRODUCTION DYNAMOMETER TESTS BETWEEN 5-3-25 AND 30-4-25. CUT - OUT CLOSED. BRAKE HORSE POWER B.M.E.P. (LBS. PER SQ. IN.) R.P.M. OF ENGINE POWER AT FLYWHEEL B.M.E.P. AT FLYWHEEL POWER AT ROAD WHEELS B.M.E.P. AT ROAD WHEELS 27-1-26 | ||