BOMwiki the bill-of-materials encyclopedia
30,441,948 parts mapped · 192,925 items

This page is machine-generated and unverified (what this means). Treat details as provisional. If you know this hardware, weigh in or correct it directly with Edit.

Discussion History

Descent Propulsion

Assembly

The braking system: throttleable engines burn storable bipropellant from pressurized tanks to slow the lander through powered descent and hover. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Descent Propulsion parts and their functions

8 top-level parts · 55 parts in total · full bill of materials below
Descent Propulsion parts diagram: 1 descent engine, 2 RCS thruster, 3 fuel tank, 4 oxidizer tank, 5 helium tank, 6 propellant valve, 7 propellant line set, 8 pressure regulator. 55 parts in 8 top-level items.
Descent Propulsion parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Descent Engine 5 parts 4× Throttleable main engines
2 RCS Thruster 12× Attitude-control thrusters
3 Fuel Tank 1× Fuel tank
4 Oxidizer Tank 1× Oxidizer tank
5 Helium Tank 2× Pressurant tanks
6 Propellant Valve 8× Propellant valves
7 Propellant Line Set 1× Feed lines and manifolds
8 Pressure Regulator 2× Pressure regulators

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Descent Propulsion

8 top-level lines · 13 rows shown · 55 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Descent Engine 5 parts plnd-descent-engine 4× 4 7 assembly
1.1 Thrust Chamber plnd-thrust-chamber 1× 4 · part
1.2 Injector plnd-injector 1× 4 · part
1.3 Engine Valve plnd-engine-valve 2× 8 · part
1.4 Gimbal Actuator plnd-gimbal-actuator 2× 8 · part
1.5 Igniter plnd-igniter 1× 4 · part
2 RCS Thruster plnd-rcs-thruster 12× 12 · part
3 Fuel Tank plnd-fuel-tank 1× 1 · part
4 Oxidizer Tank plnd-oxidizer-tank 1× 1 · part
5 Helium Tank plnd-helium-tank 2× 2 · part
6 Propellant Valve plnd-prop-valve 8× 8 · part
7 Propellant Line Set plnd-prop-line 1× 1 · part
8 Pressure Regulator plnd-pressure-regulator 2× 2 · part

Where the descent propulsion is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Planetary Lander

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳JLCPCB
jlcpcb.com ↗ 		Shenzhen, CN PCB fabrication 100 pcs 2–4 wks
🇨🇳PCBWay
pcbway.com ↗ 		Shenzhen, CN PCB fab & assembly 100 pcs 2–4 wks
🇨🇳Shennan Circuits
scc.com.cn ↗ 		Shenzhen, CN PCB manufacturer 100 pcs 2–4 wks
🇮🇳Shogini Technoarts
shogini.com ↗ 		Mumbai, IN PCB manufacturer 100 pcs 2–4 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 100 pcs 2–4 wks