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 average power and fuel consumption curves for F.XI & F.XII production engines.
| Identifier | ExFiles\Box 36\2\ scan 138 | |
| Date | 10th November 1927 | |
| RR F.XI & F.XII PRODUCTION ENGINES (AUG.- OCT. 1927.) AVERAGE POWER & CONSUMPTION CURVES A - 8/1 ENGINES B - 6/1 ENGINES WHEN CUTTING BLUE-PRINTS LEAVE MARGIN FOR FILING PURPOSES CORRECTED BRAKE HORSE - POWER C/BHP N.R.P.M. R P M FUEL CONSUMPTION A B B (20/80, BENZOL / AVIATION) A (10 C.C.S GAL; T.E.L / AVIATION) .55 Pts H.P. H.R. .50 .45 E.D.D. / 10 NOV 1927 F.S. | ||