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).
Power curve table from Brazil Straker Ltd. showing the average performance of ten recently tested 75 HP engines.
| Identifier | ExFiles\Box 36\2\ scan 066 | |
| Date | 16th November 1916 | |
| R.R. 235 A (400 T) (S.C. 538. 16-2-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1345 2935 X. 28834. BRAZIL STRAKER LTD., 16/11/16. RE - 75 H.P. POWER CURVE. The following is an average of ten recently tested engines. R.P.M. Load (Lbs). B.H.P. M.E.P. 1500 108.5 90.5 105.6 1400 111.2 86.5 108.2 1350 112.2 84.2 109.2 1300 113.0 81.6 110.0 1200 115.2 76.8 112.1 1100 115.5 70.6 112.4 1000 114.5 63.7 111.4 900 113.25 56.6 110.2 10 / X.2245 | ||