Why it matters, commodity
Rocket propellant
Oxidiser and fuel (liquid oxygen with kerosene, methane or hydrogen) loaded before launch.
- Depends on
- 0
- Depended on by
- 1
- Metrics
- 0
Neighbourhood: what depends on it (left), what it depends on (right)
- Candidate
- Hypothesized
- Mechanism supported
- Causally supported
- Established relation
Systems that would feel a shortage
Downstream: what depends on it
Launch vehicle requires input Rocket propellant2 evidenceEstablished relation
Launch vehicle depends on Rocket propellant.
Mechanism
Thrust is propellant mass flow times exhaust velocity; the vehicle is mostly propellant by mass at liftoff.
Evidence
- documentNASA Glenn, Liquid rocket thrustgrc.nasa.govThrust follows from propellant mass flow and exhaust velocity.checked 2026-09-07
- documentNASA Glenn, Liquid rocket enginewww1.grc.nasa.govPropellant, combustion chamber, turbopumps and nozzle.checked 2026-09-07
- Status
- established_identity_or_engineering_relation
- Reviewer confidence
- 0.98
- Stated strength
- 1.00
- Lag
- not stated
- Version
- curated_seed_v1
- Reviewed
- 2026-09-07
Confidence and strength are curated judgements recorded with the edge, not measured quantities.
Inputs it cannot do without
Upstream: what it depends on
No stored inputs for this entity.
Measured, from the catalog
Linked metrics
No catalog metric is linked to this entity yet.
Named on the edges that depend on it
Substitutes
No substitute is named for this entity on any stored edge.
Derived from curated edges
Bottleneck centrality
- Score
- 2.90
- Downstream entities
- 3
- Direct dependents
- 1
Sum over every entity downstream (within six hops) of the strongest path weight to it, where each edge weighs its stated strength divided by one plus its named substitutes. A graph statistic over curated edges, not an observation. Computed 2026-09-07 22:42 UTC.
Curated paths this entity is part of
Chains
Names that resolve to this node
Aliases
- LOX
- RP-1
- liquid methane
- liquid oxygen
- propellants
slug propellant, updated 2026-09-07 22:42 UTC