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 fuel consumption versus engine speed for a Bentley engine under different carburetion settings.
| Identifier | ExFiles\Box 31\5\ Scan095 | |
| Date | 31th July 1933 | |
| UNIT C.XI BENTLEY CARBURATION R.P. B.15 JULY, 31 '33 COMP RATIO 6.85:1 CAMSHAFT EB.318/(13°) 2 STS S.U. CARBS ON PIPES ES9292/3 MOD AS TO 401. RESTn V.1583 COMPLETE AIR SILENCER COMPLETE EXHAUST SILENCER OFF B.1. CHASSIS FULL THROTTLE METERING Nº RR.X. NEEDLES (JETS SET FOR SLOW RUNNING) PRATTS "ETHYL" ① FUEL HEAD = 3" (1.04 LBS. SQ. IN.) ② " = 6" (2.082 " ") ③ " = 10" 6' (3.64 " ") Graph Axes: Y-Axis: PTS/BHP/HR (.90, .80, .70, .60, .50) X-Axis: R.P.M. (500, 1000, 1500, 2000, 2500, 3000, 3500, 4000) Graph plots are labelled ①, ②, ③. Bottom right corner of graph: Cts.{C. Trot Salt - Carburation} | ||