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 of supercharged consumption loops showing specific fuel consumption versus performance at different boost pressures.
| Identifier | ExFiles\Box 179b\3\ img218 | |
| Date | 26th June 1940 | |
| FIG 2 SUPERCHARGED CONSUMPTION LOOPS. BUSH IN INJECTOR HOUSING & EXTERNAL WATER COOLING BOOST SUPPLIED FROM INDEPENDENTLY COMPRESSION RATIO 12.0 DRIVEN BLOWER OTHER CONDITIONS = STANDARD 2000 R.P.M. NO ALLOWANCE FOR B.M.E.P. REQUIRED FOR BLOWER DRIVE. THE PERFORMANCE OF THE ENGINE IN THESE TESTS WAS ADVERSELY AFFECTED BY INADEQUATE COOLING OF THE INJECTOR. SPECIFIC CONSUMPTION (LBS. B.H.P./HR.) POWER CHECKS. N.A. NORMAL N.J. C.R. 12.0 BOOST PRESS. 5 LBS/SQ.IN. BOOST PRESS. 10 LBS/SQ.IN. BOOST PRESS. 8 LBS/SQ.IN. NORMAL INT. TEST BEST N.A. RESULT - C.R. 14.0 | ||