Modifying a governor's performance curve, providing a data table of engine RPM versus lever movement.
| Identifier | ExFiles\Box 65\1\ scan0107 | |
| Date | 6th April 1925 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs {Lord Ernest Hives - Chair} /Aml/LGL6.4.25. After trying a number of governors fitted with E.73203 we should like to [REDACTED] modify the curve we gave you originally. It should now be :- Engine Agnular movement R.P.M. Lever E.72518. 0 0 500 2 600 2.25 700 3 800 4.25 900 5.8 1000 7.0 1250 11.0 1500 14.00 1750 17.50 2000 20.5 2200 22.5 2400 24.5 Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).