Halcyon Propulsion
Long Beach · Launch · about 300 people
Building the Vireo small-lift rocket and its HX-1 engine.
People
Hierarchy and recent moves → Programs
HX-2 engine upgradeNext: design review · Dec Concept2025
Design reviewDec 2026
First ignitionQ2 2027
Qualification2028
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
In the News
Halcyon's engine goes the distance#14