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Halcyon Propulsion programs

Long Beach · Launch · 300 employees · 2 programs

HX-2 engine upgradeNext: Design review Dec 2026

Design reviewDec 2026

First ignitionQ2 2027

Qualification2028

Vireo launch vehicleNext: Stage qualification NET Nov 2026

Engine design2024

First ignitionFeb 2026

Series BJun 2026

Full-duration hot-fireOct 7, 2026

Stage qualificationNET Nov 2026

Integrated static fireQ1 2027

First orbital flight2027