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 fitting and endurance testing of a fan with new aluminium blades.
| Identifier | ExFiles\Box 94\5\ scan0056 | |
| Date | 14th February 1938 | |
| γ 324 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. Rm{William Robotham - Chief Engineer}/Std.2/MH.{M. Huckerby}14.2.38. We recently requested you to fit new aluminium blades to a Ph.III fan which we handed to you - Rm{William Robotham - Chief Engineer}/Std.8/JH. 23.12.37. Also we requested modifications to a pair of fan pulleys - Rm{William Robotham - Chief Engineer}/Std.11/AP.3.2.38. Will you please fit up the fan which has been fitted with new blades, for endurance on our test rig as follows- (1) Fitted with modified fan pulley as per Rm{William Robotham - Chief Engineer}/Std. 11/AP.3.2.38. (2) Fitted with Ballraces supplied by Rm{William Robotham - Chief Engineer}/Std. (3) Packed with high and low melting point grease in the special manner already requested. The fan which has already completed 8 hours endurance on the test bed and which you have stripped for examination, should have its blade profiles corrected and should be rebuilt and returned to Rm{William Robotham - Chief Engineer}/Std. The Wraith fan which you have stripped after 17 hours endurance should be reassembled as it stands and handed to Rm{William Robotham - Chief Engineer}/Std. Rm{William Robotham - Chief Engineer}/Std. | ||