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).
Report page detailing engine performance tests, including power curves, detonation, and fuel consumption under various conditions.
| Identifier | ExFiles\Box 133\1\ scan0108 | |
| Date | 17th September 1936 | |
| -4- Section IV. A power curve was run at 8 : 1 C.R. (Fig.VIII) but detonation tests were the rule, several of these being run on D.T.D.230; 50/50 Benzole & Shell No.1; and Shell No.1. The unit could only be made to detonate on this latter fuel. Section V.{VIENNA} A series of tests were run under boosted conditions at 70°C. air temperature. Rudge & Bentley camshafts were used, and for each timing power curves, consumption loops and detonation curves were run, temperature measurements being taken at eighteen different points, as shown in Figs. IX & X. Power curves are shown on Fig. XI with temperatures on Figs. XII to XV; consumption loops on Fig. XVI with temperatures on Figs. XVII to XX; and detonation curves on Fig. XXI with temperatures on Figs. XXII to XXV. The thermo-couple readings were somewhat erratic at times, and these have therefore been adjusted where necessary in an attempt to bring all the results into line, and the figures given are probably mostly within 5%. Section VI. Very little running was done here, merely a consumption loop as on Fig. XVI, and temperatures (Figs. XXVI and XXVII) thermo-couple points being placed as nearly as possible in corresponding positions to the air-cooled unit. Part of a detonation curve was also run (Fig.XXI) with temperatures on Figs. XXVIII & XXIX. This curve was not completed due to big end failure necessitating return of the unit to makers for overhaul, and on its return to us it was fitted to an electric dynamometer for motoring, after which running was discontinued. | ||