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).
Request to change the diameter of B.60 exhaust valves and detail both cooled and uncooled versions.
| Identifier | ExFiles\Box 123\5\ scan0253 | |
| Date | 10th January 1939 | |
| 1044 To By/Ald.{F. Allwood - Experimental Design} from Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} c. Da{Bernard Day - Chassis Design}/Jnr.{Charles L. Jenner} Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}1/MH.{M. Huckerby}10.1.39. B.60 EXHAUST VALVES. Will you please detail exhaust valves and seats for the above unit, to be 1.400" diameter instead of the present 1.500". Materials should remain as before, and we should like both cooled and uncooled valves detailing. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||