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).
Flexible bladed fan for the B.III engine, including a mould scheme from British Goodrich.
| Identifier | ExFiles\Box 99\3\ scan0013 | |
| Date | 5th September 1938 | |
| c Rmfons c REF'D To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. γ 424 Rm{William Robotham - Chief Engineer}/Std.4/MH.{M. Huckerby}5.9.38. B.III FAN, FLEXIBLE BLADED TYPE. You will shortly receive a scheme ECD.738 and details for a fan for B.III with flexible blades. This consists of a fan whose blades are made of spring steel and vulcanised into rubber in the spider flanges, and which has been drawn in order to endeavour to reduce the power absorbed by the fan at high speeds on B.III. Attached is a scheme of a mould suitable for carrying out the vulcanising process mentioned above, and also for forming the final shape of the spider flange. This has been submitted by Messrs. British Goodrich as being suitable for this job. Will you please detail this mould so that the fan can be made, and advise Rm{William Robotham - Chief Engineer}/Std. when detail drawings are ready. Rm{William Robotham - Chief Engineer}/Std. | ||