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 showing the effect of temperature and restriction on water flow and suction side depression in a Phantom II cooling system.
| Identifier | ExFiles\Box 15\1\ Scan202 | |
| Date | 13th January 1930 | |
| PHANTOM II COOLING SYSTEM. EFFECT OF TEMPERATURE AND RESTRICTION ON WATER FLOW AND SUCTION SIDE DEPRESSION. RESTRICTION USED IS A PLATE DRILLED WITH ONE HOLE G DIAM. PLACED IN THE DELIVERY PIPE JOINT TO THE PUMP. LEGEND: STANDARD SYSTEM SUCTION SIDE TEMP 60°C 85°C RESTRICTED 60°C 85°C AXES & LABELS: LEFT Y-AXIS: WATER FLOW THROUGH TOP PIPE (GALLS/MIN) RIGHT Y-AXIS: DEPRESSION ON SUCTION SIDE OF PUMP (INS. MERCURY) X-AXIS: ENGINE R.P.M. GRAPH LABEL (TOP): WATER FLOW. GRAPH LABEL (BOTTOM): DEPRESSION ON SUCTION SIDE OF PUMP. OTHER: 1. STAMP: JAN 13 1930 | ||