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).
The official ordering of 'Ferogrip' fan belts for B.60 engines.
| Identifier | ExFiles\Box 123\5\ scan0071 | |
| Date | 30th August 1938 | |
| γ To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. c. Roy{Sir Henry Royce}/AW. 1044. Rm{William Robotham - Chief Engineer}/Std.6/MH.{M. Huckerby}30.8.38. B.60 BELTS. Will you please order officially, the following belts which we have requested from Messrs. Ferodo Ltd., and which have been received. They are the latest "Ferogrip" type of belt and are intended for B.60 engines. EB.3927 - V.100 Ferogrip Fan Belts 5/8" x 7/16" x 37.75" int. circumference, angle 32° - 3 off. EB.3948 - V.108 Ferogrip Fan Belts 5/8" x 7/16" x 44.5" int. circumference, angle 32° - 3 off. Rm{William Robotham - Chief Engineer}/Std. | ||