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).
Recommendation to adopt a newer water pump design (DCD.1388) over the old B.80 type for new engines.
| Identifier | ExFiles\Box 149a\3\ scan0259 | |
| Date | 5th April 1940 | |
| EV.{Ivan Evernden - coachwork} o to ST/BR.{T. E. Bellringer - Repair Manager} o to ML/Col. o to LM/OF. o to HFS/MR. 1269 RM{William Robotham - Chief Engineer}/M.S/CW.5.4.40. re WATER PUMP. -------------- We understand that a number of new engines, which have been instructed have had the old type of B.80 pump with the Vauxhall gland included in the specification. Whilst we agree that no alternative design has yet been tested, we feel that making any further pumps of this original type, which incidentally has been discarded by Vauxhalls, is a waste of time and material. As an alternative, therefore, to this pump we suggest that the latest design DCD.1388 be adopted for the next engines, as we feel that this offers considerably more chance of success than the original scheme. Naturally we do not wish to go wholesale into the job, and suggest that three or four pumps be completed, the specification for later engines being decided when some results are available on the one pump which has been completed to date. In support of the above recommendation we have the facts that the design of our latest pump is based on the Humber design, which is very satisfactory, and that Vauxhalls have changed their design to embody precisely similar principles. RM{William Robotham - Chief Engineer}/M.{Mr Moon / Mr Moore} | ||