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).
Big end loadings for the Ph.III engine.
| Identifier | ExFiles\Box 91\1\ scan0502 | |
| Date | 15th May 1937 | |
| To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Smth. f 300 Rm{William Robotham - Chief Engineer}/Smth.9/AP.15.5.37 PH.III. BIG END LOADINGS. Herewith Rm.{William Robotham - Chief Engineer}376 showing the big end loadings on Ph.III. We give the loadings running light at 4500 r.p.m.. It will be noted that both the fork and blade rod bearings have a maximum load of 2460 lbs/sq.in. The max. rubbing velocity on the blade rod bearing is however only about 1/6th. of the velocity on the crank pin. Rm{William Robotham - Chief Engineer}/Smth. | ||