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).
Requesting a modification to the Wraith Governor Unit to match settings used on the P.III.
| Identifier | ExFiles\Box 9\8\ 08-page35 | |
| Date | 2nd March 1938 | |
| 642 8 To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} c.c. Da.{Bernard Day - Chassis Design} c.c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Les.10/MH.{M. Huckerby}2.3.38. WRAITH GOVERNOR UNIT. We are running 26.G.VI in France with a Ph.III over-riding control valve spring and Ph.III main release valve spring. This gives the same governor pressures as used on P.III. As we are now setting all our units in this manner, will you please arrange for the L.o.p. to be modified. Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} | ||