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 piston displacement for crank angles, comparing performance with the exhaust manifold on and off at 2000 RPM.
| Identifier | WestWitteringFiles\K\September1923\ Scan60 | |
| Date | 17th August 1923 | |
| [ "BR 495A (1H) (SL112 17-8-23) MP 27581BR", "G1", "Spring Used—Rating 6.2 Diagram Area", "Engine", "Cyl. No. AVERAGE", "Air. Temp.", "Bar Temp.", "Cooling Water Temp.", "R.P.M. 2000", "Lbs. Lift", "H.P.", "I.M.E.P.", "B.M.E.P.", "Max. Expl. Pr.{Percy H. Rose}", "Av. Expl. Pr.{Percy H. Rose}", "Mechanical Efficiency", "Indicated Vol. Efficiency", "1" = 6.2 lbs/□"", "EX. MANIFOLD ON", "EX. MANIFOLD OFF", "ATMOS. PR.{Percy H. Rose} LINE", "PISTON DISPLACEMENT FOR CRANK ANGLES" ], | ||