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).
Explaining the methodology for comparing the Mean Effective Pressure (M.E.P.) of foreign cars with the company's own 40/50 chassis.
Identifier | ExFiles\Box 32\5\ Scan161 | |
Date | 3rd June 1921 | |
x1692 To E.{Mr Elliott - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} Hsl/LG3.6.21. x1692 x3317 HORSE POWER CURVES OF FOREIGN CARS. The M.E.P. given for Foreign cars is taken from the horse power obtained on the dynamometer. It includes the losses in transmission and road wheels. They can be compared with the curve of M.E.P. of our own 40/50 chassis of the dynamometer horse power. Hs.{Lord Ernest Hives - Chair} (R.L. 288A (100) (1) H.S.) 10.12.20 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2948 | ||