Reusable Medium-Lift Launch Vehicle (Neutron)

Neutron is Rocket Lab's medium-lift reusable launch vehicle, designed to carry 13 tonnes to low Earth orbit in expendable mode and 8 tonnes in reusable configuration. Standing 43 meters tall and powered by the Archimedes gas generator engine, Neutron is designed for rapid reuse with a unique 'hungry hippo' fairing that opens and closes without jettisoning. The debut launch is targeted for Q1 2026 from Wallops Island, Virginia, with a backlog of commercial and government customers.

Neutron directly competes with SpaceX's Falcon 9 for constellation deployment missions — the fastest-growing segment of the launch market driven by OneWeb, Amazon Kuiper, and military communications constellations. While Falcon 9 dominates today, most customers want a credible second provider to reduce concentration risk. Rocket Lab's track record with Electron (100+ missions) and its existing relationships with NASA, DoD, and allied defense customers position Neutron as the leading alternative.

For the Australia-New Zealand region, Neutron extends sovereign-adjacent launch capability to the medium-lift class, enabling deployment of military surveillance satellites, broadband constellations, and scientific missions that currently depend entirely on US and European launchers. Although Neutron launches from the US, Rocket Lab's New Zealand heritage and close defense ties mean the technology contributes to regional strategic capability.