Indicator, Induction, and Compression diagrams for a G.II engine.
| Identifier | WestWitteringFiles\K\September1923\ Scan68 | |
| Date | 21th September 1923 | |
| G.I. INDICATOR DIAGRAM. SPRING USED-RATING. 59.0 DIAGRAM AREA. 14.9 ENGINE 8 GII CYL. No REPRESENTATIVE DIAGRAM. AIR. TEMP. 15°C BAR. TEMP. 750 M.M. COOLING WATER TEMP 85°C. R.P.M. 2000. LBS. LIFT. 47.0 LBS H.P. 39.2 I.M.E.P. 110 LBS/D" B.M.E.P. 81.3 LBS/D" MAX. EXPL. PR. {Percy H. Rose} 365 LBS/D" AV. EXPL. PR. {Percy H. Rose} 325 LBS/D" MECHANICAL EFFICIENCY 73.9% INDICATED VOL. EFFICIENCY 93% STANDARD SILENCER FITTED Top Diagram: PRESSURE LBS/D" RELATIVE TO ATMOSPHERE. ATMOS. PR. {Percy H. Rose} LINE I.O. E.C. E.O. INDUCTION & FINISH OF EXHAUST DISCHARGE OF UPPER DIAGRAM TO A VERTICAL SCALE 9.5 TIMES GREATER. Middle Diagram: PRESSURE LBS/D" RELATIVE TO ATMOSPHERE. ATMOS. PR. {Percy H. Rose} LINE I.O. E.C. I.C E.O COMPRESSION DIAGRAM. Bottom Diagram: PRESSURE LBS/D" RELATIVE TO ATMOSPHERE. ATMOS. PR. {Percy H. Rose} LINE I.O. E.C. COMPR I.C E.O Stamp: ROLLS-ROYCE, LIMITED PRINT ROOM 21 SEP. 1923 DERBY | ||
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).