Rocket 4
Description
Rocket 4 is an expendable, small-lift launch vehicle under development by Astra Space. Announced in May 2022, it will initially be capable of placing 600kg in Low Earth Orbit. The first stage will utilize two Astra-built tap-off cycle engines derived from Firefly's Reaver engine and will be fuelled with RP-1/LOX. The second stage will utilize a single Hadley Vacuum engine from Ursa Major and will also be fuelled by RP-1/LOX. It is designed to be rapidly transportable and deployable to nearly anywhere in the world via Astra's Launch System 2.0 containerized GSE.
Next Up
NET 3rd Quarter, 2026
Demo Flight
Rocket 4 | Astra
Cape Canaveral SFS, Florida, USA
Configurations
Planned
Rocket 4
Price
$5.00 million
Rocket
Diameter: 1.8m
Height: 18.9m
Payload to Orbit
LEO: 600 kg
Liftoff Thrust
356 Kilonewtons
Fairing
Diameter: 1.7m
Height: 3.4m
Stages
2