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 and consumption curves from a 500cc Rudge engine test.
| Identifier | ExFiles\Box 133\2\ scan0154 | |
| Date | 20th June 1935 guessed | |
| 500cc RUDGE TESTS. SHEET 2 POWER & CONSUMPTION CURVES COMPRESSION RATIO = 7.3 FUEL = 50/50 (BENZOL/DTD 224) VALVE TIMING (.020" CLEARANCE): I.O. 28°E.{Mr Elliott - Chief Engineer}, I.C. 48°L. E.O. 50°E.{Mr Elliott - Chief Engineer}, E.C. 25°L. NORMAL EXHAUST PIPES (1300cc EACH) BRAKE HORSE POWER R.P.M. B.M.E.P. (LBS/SQ. IN.) SP.{Mr Spinney} FUEL CONS. (PTS/BHP/HR) NORMAL CARBURRETTOR MOUNTING - DITTO - BUT WITH SHORTER EXHAUST PIPES (440cc EACH) INDEPENDENTLY MOUNTED CARBURRETTOR (INDUCTION PIPE 2 1/4" LONGER) | ||