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).
Graph plotting water flow tests against water temperature for a P.I. No 7 unit standard radiator.
| Identifier | WestWitteringFiles\U\August1930-November1930\ Scan122 | |
| Date | 14th October 1930 guessed | |
| WATER FLOWS TESTS ON P.I. No 7 UNIT. STANDARD RADIATOR (E.77675) OFF PRODUCTION STANDARD CIRCULATION 2500 R.P.M. 3000 R.P.M. CIRCULATION UNDER 4 LBS/D" PRESSURE. R.P.M. 2500 3000 DELIVERY GALLS / MIN. PRESSURE LBS/D" BOTTOM WATER TEMP. LBS/D" PRESSURE DELIVERY SIDE PUMP LBS/D" DEPRESSION SUCTION SIDE PUMP DEPN LBS/D" | ||