Water circulation test graphs for PII, comparing pump delivery against water temperature for different radiator configurations.
| Identifier | ExFiles\Box 15\1\ Scan303 | |
| Date | 1st July 1930 guessed | |
| WATER CIRCULATION TESTS PII Graph 1: - Y-Axis: PUMP DELIVERY GAL/MIN - X-Axis: BOTTOM WATER TEMP °C - Line 1: RAD E.79321, BOTH SUCTION OUTLETS IN USE - Line 2: 1st L.H. CHASSIS, RAD WITH THERMOSTAT E.77675 - Note: 2500 ENGINE R.P.M. Diagram 1 (Top Right): - Rad E79321 - 6 3/16" & 7 9/16" - 26 5/8" - 4 DEEP - 23 5/8" Diagram 2 (Bottom Right): - Rad E.77675 - 6 3/16" & 7 9/16" - 26" - 4 DEEP - 23.25" Graph 2: - Title: S.S. UNIT S.S.7, RAD E.79321 VENTURI IN OUTLET - Left Y-Axis: WATER PUMP DELIVERY GAL/MIN - Right Y-Axis: PUMP SUCTION DEPRESSION INS H₂O - X-Axis: BOTTOM WATER TEMP °C - Line 1: DEPN ON SUCTION SIDE OF PUMP - Line 2: FLOW GAL/MIN - Line 3: PUMP INLET DEPN - Note: 2500 ENGINE R.P.M. | ||
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).