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).
Noting a preferred pump modification and specifications for a bush and casing.
| Identifier | ExFiles\Box 149\2\ scan0145 | |
| Date | 12th February 1937 | |
| -5- Rm.{William Robotham - Chief Engineer}1/R.12.2.37. The last pump or modification is the best for Production. E.60060 Bush; diameter of flange 0.975-1/2. EB.2131 Alum. casing. counterbore diameter 0.975 + 1. Rm.{William Robotham - Chief Engineer} / GR{George Ratcliffe} | ||