Graph of exhaust back pressure curves versus RPM for Engine Unit N.R.G8 with various silencer configurations, noted for 'Japan'.
| Identifier | ExFiles\Box 6\7\ 07-page129 | |
| Date | 30th June 1931 guessed | |
| V1160 EXHAUST BACK PRESSURE CURVES (JAPAN(Experimental Engine)) ENGINE UNIT N_R G8. (5.25:1 COMPRESSION RATIO) 112° LONG DURATION CAMSHAFT TWIN-CHOKE ZENITH CARB. SMALL BORE INS. PIPE ALL CURVES TAKEN WITH THREE DOWNTAKE PIPES & FRONT EXPANSION BOX TO V.1125 EXHAUST B~P (INCHES MERCURY) R.P.M. CURVE LABELS: 25 H.P. SILENCER, WITH FRONT EXTENSION PIPE REMOVED (SEE V.1130) & SWAN-NECK STANDARD 25 H.P. SILENCER SWAN-NECK REMOVED 25 H.P. SILENCER, WITH FRONT EXTENSION PIPE REMOVED & NO SWAN-NECK SHORT TYPE R.L.T.I SILENCER WITH SWAN-NECK LONG TYPE R.L.T.I SILENCER WITH SWAN-NECK | ||
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).