What this node means
Crew days turn life support from equipment inventory into a time-dependent mass, maintenance, and reliability problem.[1]
Why it matters
In the CosmosExplore model, crew days is kept as a separate node so cost, logistics, and risk assumptions stay inspectable.[1]
Guardrails
- This entry is a model context node, not a mission quote, route promise, or safety assessment.[2]
Related graph nodes
Outgoing
- Consumables reserveDrives cost[1]
- ECLSSDrives requirement[1]