Family-level launch record combining canonical variants, historical missions, public cadence forecasts, and available payload performance specs.
Historical missions are grouped by actual launch year. Forecast cadence uses family-level launch-rate rows.
| Year | Historical missions | Forecast launches |
|---|---|---|
| 2026 | 0 | 1 |
| 2027 | 0 | 3 |
| 2028 | 0 | 5 |
| 2029 | 0 | 6 |
| 2030 | 0 | 8 |
| 2031 | 0 | 8 |
| 2032 | 0 | 10 |
| 2033 | 0 | 10 |
| 2034 | 0 | 10 |
| 2035 | 0 | 12 |
| 2036 | 0 | 12 |
| 2037 | 0 | 12 |
| 2038 | 0 | 12 |
| 2039 | 0 | 12 |
| 2040 | 0 | 12 |
| 2041 | 0 | 12 |
Payload capacity by variant and target orbit when structured capacity rows are available.
| Variant | Orbit | Capacity | Altitude | Inclination | Source |
|---|---|---|---|---|---|
Neutron | LEO | 15,000 kg | Unknown | Unknown | Rocket Lab Reusable Rockets |
Neutron | LEO | 13,000 kg | Unknown | Unknown | Rocket Lab Neutron |
Latest launched missions using variants in this family.
| Mission | Variant | Launch |
|---|---|---|
No recent missionsNo launched missions are linked to variants in this family. | ||
Upcoming mission rows with announced launch timing.
| Mission | Variant | Announced |
|---|---|---|
No forecasted missionsNo upcoming announced mission rows are linked to this vehicle family. | ||
Canonical variants rolled up into this launch vehicle family.
| Variant | Stages | Missions | Status |
|---|---|---|---|
Neutron | Not stated | 0 | Development |
1 launch location represented.
| Year | Location | Launches | Confidence | Basis |
|---|---|---|---|---|
| 2026 | Wallops Flight Facility / MARS | Launch Complex 3 | 1 | 35% | Conservative startup-ramp annual family throughput default: Neutron is targeted for debut in late 2026; use early operational ramp, not mature medium-lift cade... |
| 2027 | Wallops Flight Facility / MARS | Launch Complex 3 | 3 | 35% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2028 | Wallops Flight Facility / MARS | Launch Complex 3 | 5 | 35% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2029 | Wallops Flight Facility / MARS | Launch Complex 3 | 6 | 30% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2030 | Wallops Flight Facility / MARS | Launch Complex 3 | 8 | 30% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2031 | Wallops Flight Facility / MARS | Launch Complex 3 | 8 | 30% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2032 | Wallops Flight Facility / MARS | Launch Complex 3 | 10 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2033 | Wallops Flight Facility / MARS | Launch Complex 3 | 10 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2034 | Wallops Flight Facility / MARS | Launch Complex 3 | 10 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2035 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2036 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2037 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2038 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2039 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2040 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. |
| 2041 | Wallops Flight Facility / MARS | Launch Complex 3 | 12 | 25% | Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated. Site-... |
Conservative startup-ramp annual family throughput default: Neutron is targeted for debut in late 2026; use early operational ramp, not mature medium-lift cadence.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Conservative startup-ramp annual family throughput default: Neutron cadence below previous 16/year upper curve until regular operations are demonstrated.
Neutron |
| LEO |
| 8,000 kg |
| Unknown |
| Unknown |
| Rocket Lab Reusable Rockets |
Neutron | escape | 1,500 kg | Unknown | Unknown | Rocket Lab Neutron Payload User Guide |
Rocket Lab signed a contract with an undisclosed commercial satellite constellation operator for two Neutron launches, one scheduled in mid-2026 and the other in 2027.
Rocket Lab plans a single Neutron test launch in 2025, three launches in 2026, five launches in 2027, and then scale to seven launches and beyond.
Rocket Lab targeted a launch price of $50,000,000 to $55,000,000 for Neutron.
Neutron is eligible to compete for missions under the United States Space Force’s OSP-4 program, an IDIQ contract valued at $986,000,000.
Rocket Lab signed a launch service agreement for multiple Neutron launches with a confidential commercial satellite constellation customer in 2024-07-01.
Rocket Lab signed a multi-launch agreement (MLA) with a confidential commercial satellite constellation operator for Neutron that includes two dedicated Neutron missions starting from mid-2026.
Rocket Lab’s Neutron medium-lift reusable launch vehicle is designed to deploy 13,000 kg to LEO.
The combined thrust of nine Archimedes engines on Neutron’s first stage is designed to reach 657,708 kg-force.
Archimedes will also power Neutron’s second stage, which is designed to carry up to 13,000 kg of payload to low Earth orbit.
Rocket Lab will launch two dedicated missions for the confidential commercial satellite constellation operator on Neutron starting from mid-2026.
The contract includes options to expand digital engineering across Neutron’s propulsion system and to build a digital engineering framework for NSSL Phase 3 Lane 1 providers.
Neutron is a key element of Rocket Lab’s strategy to prepare to deploy its own constellations and deliver services from space.
Neutron is a new reusable medium-lift launch vehicle projected to launch in 2025.
Neutron is eligible to compete for missions under the United States Space Force’s OSP-4 program, which is a separate $986,000,000 IDIQ contract.
The UMSR will start its reactor by introducing a neutron-producing element, initiating fission through uranium 233 in the molten salt.
Rocket Lab is producing Neutron engines at a former Virgin Orbit facility in Long Beach, California that Rocket Lab acquired after Virgin Orbit’s bankruptcy.
Rocket Lab received $24,000,000 from the U.S. Space Force to support work on Neutron’s second stage.
Rocket Lab expects Neutron development costs to range between $250,000,000 and $300,000,000.
Neutron will launch and land at a dedicated launch and test range within Rocket Lab Launch Complex 3 at the Mid-Atlantic Regional Spaceport on Wallops Island, Virginia starting in 2025.
Neutron will be powered by Rocket Lab’s 3D-printed reusable Archimedes engine, an oxygen-rich staged combustion engine using liquid oxygen and methane propellants.