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 showing the 20HP power increase due to lower depression in the induction pipe for engine No. 11-GII.
| Identifier | WestWitteringFiles\Q\2April1927-June1927\ 8 | |
| 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. 20HP CARB. ZENITH TRIPLE VENTURI HORIZONTAL CARB. TWO ZENITH T.V.H. CARBS. INDn PIPE DEPN STD. 20HP CARB. ZENITH. TWO ZENITHS. BRAKE HORSE POWER. R.P.M OF ENGINE. INDUCTION PIPE DEPRESSION (INCHES OF MERCURY) 30-3-27 1 | ||