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).
Average engine performance curves for Brake Horsepower and petrol consumption at various RPMs.
| Identifier | ExFiles\Box 69\4\ scan0279 | |
| Date | 6th February 1925 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -6- Expl. No. REF Hs{Lord Ernest Hives - Chair}/ACL/LG6.2.25. EXPERIMENTAL REPORT. You will probably have to obtain a value for the particular exhaust system you use on the Unit Test Beds. The following is an average curve :- R.P.M. B.HP. 2500 113 2250 111.6 2000 105.8 1750 97 1500 84.5 1250 70.4 1000 56.25 750 43.9 670 39.2 PETROL CONSUMPTION. The following consumption curve was taken for the weakest maintained :- R.P.M. Pts./HP/Hr. 2500 .705 2250 .671 2000 .645 1750 .632 1500 .641 1250 .642 1000 .672 750 .690 665 .675 Hs{Lord Ernest Hives - Chair}/ACL. | ||