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 detailing the leading particulars of a water level indicator for aircraft cooling systems.
| Identifier | ExFiles\Box 179\2\ img013 | |
| Date | 3rd December 1931 | |
| LEADING PARTICULARS OF WATER LEVEL INDICATOR. THE GENERAL APPLICATION OF THIS DEVICE WAS FULLY DEALT WITH IN L.R.S. MEMO LRI/AD/14 11-10-31. WATER LOSS INDICATORS ON COOLING SYSTEMS IN AIRCRAFT. DETAILS OF BIMETAL UNIT CAN BE OBTAINED FROM DES. 1578. THESE PIPES WHERE ENTERING TANK & IN TANK SHOULD BE KEPT AS CLOSE TOGETHER AS POSSIBLE SO THAT THE TANK FITTING CAN BE AT MINIMUM SIZE. WATER LEVEL .500. WHEN LIGHT COMES ON 1 GALL. LEFT IN TANK. 2 HOLES .050 DIA. 9". 300. 2 2/3". 1/2". G18 3-12-31. | ||