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).
Cost investigation of alternative designs for the Wraith III water pump.
| Identifier | ExFiles\Box 148\5\ scan0356 | |
| Date | 30th June 1938 | |
| To Rm{William Robotham - Chief Engineer}/Std. from G/Rb.{R. Bowen} G/Rb.{R. Bowen}6/K/73/R.30.6.38. Into cost Wraith III Water Pump - SEC.5160 1260 Std.Water Pump - Arr.EW.1440 Ball Brg.Type" -SCD.574/234. Tufnol Brg." " -SCD.584. W R Hampson Rm{William Robotham - Chief Engineer}/STD.13/MH.{M. Huckerby}14.6.38. We have investigated the costs of the Water Pumps, to the alternative designs and the following is the estimated comparative factory costs. Estimated Factory Cost. £. s. d.{John DeLooze - Company Secretary} Std. Water Pump to Arr.EW.1440. 1 14 3 Water Pump,ball bearing type to scheme SCD.234 Mod.574. In this estimate we have included the Skefco ball bearing unit as bought out at 7/6d each (per Rm{William Robotham - Chief Engineer}/Std) 1 13 4 Water Pump,Tufnol bearing type to scheme 584. We have included in this estimate the Tufnol bearing as bought out at £8. 4. 9d per 100, and the Tufnol Thrust Washer as bought out 11/6d per 100, in accordance with the quotation received from Messrs. Ellison Insulations Ltd. 1 8 5 G/Rb.{R. Bowen} AK | ||