Graph plotting power increase and induction pipe depression against engine RPM for a 20HP engine.
| Identifier | ExFiles\Box 22\4\ Scan144 | |
| Date | 30th March 1927 | |
| 20HP POWER INCREASE DUE TO LOWER DEPRESSION IN INDUCTION PIPE. ENGINE No 11-GII COMPRESSION RATIO = 5·45 to 1. OPEN EXHAUST. CURVES CORRECTED TO N.T.P. B.H.P. STD. 20 HP CARB. ZENITH TRIPLE VENTURI HORIZONTAL CARB. TWO ZENITH T.V.H. CARBS. INDN PIPE DEPN STD. 20 HP CARB. ZENITH. TWO ZENITHS. BRAKE HORSE POWER R.P.M OF ENGINE. INDUCTION PIPE DEPRESSION (INCHES OF MERCURY) | ||
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).