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).
Performance comparison graph of a CI unit against a 5.70 C/R & CXI unit.
| Identifier | Morton\M13.2\ img124 | |
| Date | 29th May 1931 | |
| 29/5/31. RM.{William Robotham - Chief Engineer} 48 COMPARISON OF CI UNIT WITH 5-70 C/R & CXI UNIT FOR 10,000 MILES P II COMPLETE SHORT TYPE SILENCER USED IN BOTH CASES CI UNIT 112° SHAFT. HIGH LIFT ROCKERS CXI Sch 1542/3 CAMSHAFT PISTONS E 57122 STANDARD 15% LARGER CARB. WITH P.II. SILENCER B.H.P. COMPRESSION PRESS LBS/SQ IN IND: DEPN: INS: HG R.P.M. | ||