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).
Test data sheet for water pressures observed in Goshawk cylinders under various conditions.
| Identifier | ExFiles\Box 179b\3\ img254 | |
| Date | 17th February 1933 guessed | |
| GOSHAWK CYLINDERS TO D.C.S. 4/3 WATER PRESSURES OBSERVED IN SPECIFIED POSITIONS ENGINE N° M.S. 607. WATER PUMP TO L.O.P. 33201 On WATER RINGS CLEANED OUT on SCOURING BOARD. Conditions of Test:- CASE 1: As on Drg. D The test was CARRIED OUT AT SCOURING BOARD. To pass this test WITH ONE RESTRICTION WASHER WING TO ONE OUTLET PORT ONLY. CASE 2: HOSE FITTED AT THE REAR OUTLET PORT. WATER HAVING TO FLOW TO RESTRICTION WASHERS FITTED TO N°s 1,2,3 & 4 OUTLET PORTS, N°s 5 AND 6 BEING BLANKED OFF. TABLE OF DATA: | CONDITIONS OF TEST | R.P.M | B.H.P | WATER PRESSURES lbs/in² | | | | | |-----------------------------------------------------------------------------------------|-------|-------|-------------------------|-------------------|------------------|-----------------|---------------------| | | | | Cyl. Block Inlet | Cyl. Block Front | Cyl. Block Rear | Top Water Conn. Front | Top Water Conn. Rear | | RESTRICTIONS AS IN CASE 1 (AS IN DRG 'D' THE TEST) NORMALLY WATER-COOLED | 2500 | 600 | 19 | 2.6 | 2.6 | 3.0 | 2.4 | | RESTRICTIONS AS IN CASE 2. NORMALLY WATER-COOLED | 2500 | 600 | 31 | 5.1 | 5.1 | 5.0 | 2.8 | | RESTRICTIONS AS IN CASE 2. NORMALLY WATER-COOLED | 1500 | 212 | 8.5 | 1.25 | 1.25 | 1.1 | 0.9 | | RESTRICTIONS AS IN CASE 2. EVAPORATIVELY COOLED | 2500 | 780 | 24.5 | 3.8 | 3.8 | 4.9 | 2.1 | | RESTRICTIONS AS IN CASE 2. EVAPORATIVELY COOLED | 2600 | 600 | 13.5 | 8.2 | 8.2 | 6.8 | 2.3 | | Calculated Pressures Corresponding with Test Results Required on Sheet 21 Evaporatively-Cooled. | 2600 | 600 | - | 8.2 | 8.2 | 6.8 | 2.3 | | ||