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 between a CI Unit and a CXI Unit over 10,000 miles.
| Identifier | ExFiles\Box 181\M13\M13.2\ img124 | |
| Date | 29th June 1937 | |
| 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. B.H.P. COMPRESSION PRESS LBS/SQ' IND: DEPN: INS: HG RPM WITH P.II. SILENCER | ||