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).
Instruction to fit water pump thrust plugs (EXS.570) to all Wraith and B.III engines.
| Identifier | ExFiles\Box 149a\1\ scan0185 | |
| Date | 10th March 1938 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} J 1269. Rm{William Robotham - Chief Engineer}/Std.7/MH.{M. Huckerby}10.3.38. Will you please fit as soon as possible water pump thrust plugs to EXS.570 to all Wraith type water pumps, whether fitted on Wraith or B.III engines in cars or on test bed. Rm{William Robotham - Chief Engineer}/Std. | ||