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).
Engine performance indicator diagrams for a Micklewood 2-stroke engine, showing pressure versus crank angle.
| Identifier | ExFiles\Box 54\4\ Scan033 | |
| Date | 12th July 1928 guessed | |
| MICKLEWOOD 2 STROKE FIRING 4 1/2 BORE 5 STROKE SCAVENGING PR. {Percy H. Rose} 3 LBS/D" DIAGRAM AREA B.718 D" SPRING RATING 50 LBS/D" I.M.E.P. 54.5 LBS/D" EXP. PRESSURE 250 LBS/D" LBS/D" ATS LBS/D" IGNITION 14 B.T.D.C. EX. VALVE CLOSES 83 A.B.D.C. EX. VALVE OPENS 94 A.T.D.C. SCAVENGING COMMENCES 69 B.B.D.C. FORCED INDUCTION BEGINS 25 A.B.D.C. MOTORING COMPRESSION Pr 85 LBS./D" CRANK ANGLE | ||