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 graph showing the consumption loop for a Kestrel Supercharged Engine.
| Identifier | ExFiles\Box 179\2\ img131 | |
| Date | 30th October 1931 | |
| KESTREL SUPERCHARGED ENGINES CURVE. 275 'F' CONSUMPTION LOOP - THROTTLE AND MIXT. CONTROL ADJUSTED TO OBTAIN RATED BOOST AT POSN. OF MAX. POWER AT NORMAL R.P.M - 2250 THROTTLE SET AT THIS POSITION AND CONS. LOOP TAKEN, SPEED AND BOOST BEING ALLOWED TO VARY WITH POSN. OF MIXTURE CONTROL ENG. K.IIS-27 BAR. 29.5 Hg. RATED BOOST - 28.92 Hg. ABS AIR 17 °C Y-AXIS: PINTS/BHP/HR X-AXIS: BRAKE HORSE POWER (ACTUAL) CURVE DATA POINTS: 2010, 2070, 2170, 2210, 2230, 2250, 2240 MAX. POWER .555 Pts/BHP/HR W.M. .535 Pts/BHP/HR G.P. 30-10-31 | ||