Neutron

In Development
Rocket Lab
Rocket Lab
Neutron

Overview

Medium-lift reusable rocket under development for mega-constellation deployment, national-security, and human spaceflight.

First launch is still targeted for Q4 2026 from Launch Complex 3 at Wallops, with the first flight vehicle being integrated on site, FAA launch permits filed (window July 1–Dec 31, 2026), Stage 1 tank redesign improving strength and manufacturability, and Stage 2 qualification complete and ready for hot fire. Eight Neutron launches were on backlog as of Q1 2026.

Key Specs

Payload to LEO

13,000 kg

Height

43 m (141 ft)

Diameter

7 m (23 ft)

Reusable

Yes (first stage)

Engine

Archimedes (LOX/methane)

Target First Launch

Q4 2026