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).
Rated altitude power curve graph for a fully supercharged engine.
| Identifier | ExFiles\Box 27a\4\ Scan219 | |
| Date | 12th September 1935 | |
| GOS. FULLY S/CHARGED ENGINE CURVE 444F RATED ALTITUDE POWER CURVE ENG: K.V. 25 WITH GOS. S/CHARGER & 8.825/1 GEAR RATIO FUEL: D.T.D. 230 M.C. posn. WEAKEST MAINTAINED OIL: D.T.D. 71 PLUGS: K.L.G. V9/1. BAROMETER: 30.12" Hg AIR INT. TEMP: 20.5 °C CORRECTED B.H.P. BOOST INS. HG. B.M.E.P. - LB/SQ" FUEL-LB/B.H.P./HR CRANK R.P.M. G/BOOST G/BMEP G/BHP F/LB/BHP/HR I.D.B. 12/9/35 | ||