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).
Particulars and missing data from a brake chart for various models.
| Identifier | ExFiles\Box 121\1\ scan0328 | |
| Date | 14th October 1940 | |
| 1029 To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby} Copy to Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}7/ET.14.10.40. BRAKE CHART. ----------- The chart gives all particulars except the pedal ratios and front/rear ratios of 2.B.50 and 33.G.VII, because they are not known for certain, and also of 4.B.50 which should have a very high front/rear ratio, but requires investigating. 9.B.V is having the 30" cams fitted, but has not yet been tested. It would be interesting to obtain efficiencies for 12.B.V, on which it appears that the front brakes are more efficient than the rears. Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby} | ||