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).
Horse power curves for the standard 40/50 engine.
| Identifier | ExFiles\Box 74\4\ scan0155 | |
| Date | 1st May 1921 | |
| X3056 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c.c. to CJ. c.c. to BN.{W.O. Bentley / Mr Barrington} c.c. to E.{Mr Elliott - Chief Engineer} c.c. to Ds. c.c. to BY.{R.W. Bailey - Chief Engineer} c.c. to EP.{G. Eric Platford - Chief Quality Engineer} c.c. to FN. c.c. to EWT. for R.R.Inc. Hs{Lord Ernest Hives - Chair}2/LCS.5.21. X3056 HORSE POWER CURVES OF STANDARD 40/50 ENGINE. Attached herewith are curves of high and low compression 40/50 engine giving the dynamometer and road wheel horse power with cut-out open and cut-out closed. We have plotted on these curves the different axle ratios so that a comparison of horse power at various speeds can be ascertained. The figures for these curves have been taken from average production engines. For Prints Rel original (file) Hs.{Lord Ernest Hives - Chair} | ||