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 showing engine fuel consumption loops for the calibration of 87 and 77 octane fuels.
| Identifier | ExFiles\Box 27a\4\ Scan218 | |
| Date | 12th September 1935 | |
| GOS. FULLY S/C ENGINE CURVE 443 F CONSUMPTION LOOPS (CALIBRATION OF 87 AND 77 OCTANE FUELS) ENG. K V.25 WITH GOS. S/CHARGER 8.823/1 GEAR RATIO OIL: D.T.D. 109 PLUGS: K.L.G. V9/1 ALL LOOPS TAKEN AT +2LB/O/2250 RPM. FUEL USED: D.T.D. 134. FUEL USED: D.T.D. 230 (87 OCTANE) FUEL USED: D.T.D. 224 (77 OCTANE) B.H.P. 380 390 400 410 420 PT/BHP/HR 650 600 550 500 | ||