Vacuum Engine
AssemblyExpander-cycle LOX/LH2 engine producing 110 kN at 465 s specific impulse; hydrogen warmed in the chamber jacket drives the turbopumps, allowing gentle, restartable starts. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Vacuum Engine
7 top-level lines as of r143750| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Thrust Chamber | rocket-upper-stage-thrust-chamber | 1× | 1 | · | part |
| 2 | Nozzle Extension | rocket-upper-stage-nozzle-ext | 1× | 1 | · | part |
| 3 | LH2 Turbopump 4 parts | rocket-upper-stage-lh2-turbopump | 1× | 1 | 0 | assembly |
| 4 | LOX Turbopump 4 parts | rocket-upper-stage-lox-turbopump | 1× | 1 | 0 | assembly |
| 5 | Turbine Bypass Valve | rocket-upper-stage-bypass-valve | 1× | 1 | · | part |
| 6 | Spark-Torch Igniter | rocket-upper-stage-igniter | 2× | 2 | · | part |
| 7 | TVC Actuator 4 parts | rocket-upper-stage-tvc-actuator | 2× | 2 | 0 | assembly |