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 the machining of a Ph.III water pump casing to achieve a specific clearance.
| Identifier | ExFiles\Box 149a\1\ scan0303 | |
| Date | 22th September 1938 | |
| 1269 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. Rm{William Robotham - Chief Engineer}/Std.12/MH.{M. Huckerby}22.9.38. We hand you herewith a Ph.III water pump casing off the test rig - will you please machine sufficient metal off both the joint face and thrust bush to ensure that there is not more than .020 clearance between either the case and rotor or the cover and the rotor. Rm{William Robotham - Chief Engineer}/Std. | ||