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).
Blueprint Lec. 2885, proposing changes to the Japan 3 engine's water pump, drain plug, and water flow scheme.
| Identifier | ExFiles\Box 149a\1\ scan0025 | |
| Date | 14th March 1931 | |
| R.{Sir Henry Royce} FROM E.{Mr Elliott - Chief Engineer} SECRET. X9750 E4/M14.3.31. C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} C. to HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} HY.{Tom Haldenby - Plant Engineer} JAPAN 3. WATER PUMP AND DRIVE. Please find herewith blueprint of Lec. 2885 dealing with the above. we propose to put a drain plug at the rear of the cyl. block in addition to the drain plug or tap below the water pump. this is very usual now as there are so many engines that pump the water in at the top of the cyl. block. There is an alternative scheme of water flow which we should like to consider in which the pump delivers at the front of the cyl. block and all the water is made to pass to the rear end of block and then by suitable connections up to the rear end of the head, and thence along the head to the radiator. The more vigorous flow throughthe head with this system seems to be a virtue. E.{Mr Elliott - Chief Engineer} | ||