Ballast & Trim System
AssemblyMain ballast tank vents and emergency blow flasks for gross buoyancy, plus trim and drain pumps, the hydraulic plant and piping that move water between tanks to hold neutral buoyancy and zero bubble. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Ballast & Trim System
9 top-level lines as of r7557| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Ballast Tank Vent Valve | attack-submarine-mbt-vent-valve | 14× | 14 | · | part |
| 2 | High-Pressure Air Flask | attack-submarine-air-flask | 14× | 14 | · | part |
| 3 | Trim Pump | attack-submarine-trim-pump | 2× | 2 | · | part |
| 4 | Drain Pump | attack-submarine-drain-pump | 2× | 2 | · | part |
| 5 | Hydraulic Power Plant 5 parts | attack-submarine-hydraulic-plant | 1× | 1 | 0 | assembly |
| 6 | Control-Surface Ram | attack-submarine-control-surface-ram | 6× | 6 | · | part |
| 7 | Pipe Spool | attack-submarine-pipe-spool | 1400× | 1,400 | · | part |
| 8 | Plant Valve | attack-submarine-plant-valve | 380× | 380 | · | part |
| 9 | Pipe Hanger | attack-submarine-pipe-hanger | 2400× | 2,400 | · | part |