Neutron’s first launch slips again amid trouble with carbon composites
Rocket Lab has delayed the first flight of its Neutron medium-lift rocket to 2027 after inspections revealed manufacturing defects in the first-stage forward propellant dome. The company discovered voids in the newly cured carbon-composite component, forcing the timeline past the previous target of the fourth quarter of 2026. This delay triggered a decline in Rocket Lab stock, with some analysts cutting price targets as the company struggles to bring the vehicle to market. Peter Beck has since outlined the necessary steps to resolve the manufacturing issues.
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- ✓ Rocket Lab announced on October 14, 2026, that the first Neutron launch is now expected in 2027.
- ✓ Inspections found voids in a newly cured carbon-composite forward propellant dome for the rocket's first stage.
- ✓ The Neutron rocket was originally announced in 2021 with an initial target flight date of 2024.
- ✓ Rocket Lab stock prices fell following the announcement of the launch delay.
What changed
Rocket Lab shifted the Neutron debut from Q4 2026 to 2027 following the discovery of voids in a carbon-composite propellant dome.
Live updates
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Rocket Lab pushes Neutron first launch to 2027 due to tank defects
Rocket Lab has delayed the first flight of its Neutron medium-lift rocket to 2027 after inspections revealed manufacturing defects in the first-stage forward propellant dome. The company discovered voids in the newly cured carbon-composite component, forcing the timeline past the previous target of the fourth quarter of 2026. This delay triggered a decline in Rocket Lab stock, with some analysts cutting price targets as the company struggles to bring the vehicle to market. Peter Beck has since outlined the necessary steps to resolve the manufacturing issues.
Why it matters
Announced in 2021, Neutron is intended to compete for market share against SpaceX. The rocket was originally aimed for a 2024 debut. This latest slip highlights the technical difficulty of using carbon composites for large-scale propellant tanks.
What is confirmed
- Rocket Lab announced on October 14, 2026, that the first Neutron launch is now expected in 2027.
- Inspections found voids in a newly cured carbon-composite forward propellant dome for the rocket's first stage.
- The Neutron rocket was originally announced in 2021 with an initial target flight date of 2024.
- Rocket Lab stock prices fell following the announcement of the launch delay.
Still unconfirmed
- RKLB remains nearly 70% below its May record.
- KeyBanc and Clear Street cut price targets for Rocket Lab.
What to watch next
- Updates on the manufacturing of a replacement carbon-composite propellant dome
- Confirmation of a specific 2027 launch window
- Results of further structural testing on the first-stage tankage
confidence 100%Sources used for this update (12)
- arstechnica.com — Ars Technica - Serving the Technologist since 1998. News, reviews, and ...
- Bloomberg.com — Rocket Lab Falls After Neutron Rocket Debut Delayed to 2027
- SpaceNews — Rocket Lab delays first Neutron launch again
- Yahoo Finance — Rocket Lab stock tumbles as effort to take market share from SpaceX slips to 2027
- Ars Technica — Neutron’s first launch slips again amid trouble with carbon composites
- Investopedia — Rocket Lab Stock Tumbles After Launch Delay
- coinalertnews.com — Rocket Lab Plunges as Neutron Launch Slips to 2027 on ...
- arstechnica.com — Neutron's first launch slips again amid trouble with carbon ...
- newswire.co.nz — Rocket Lab delays Neutron first launch to 2027 over tank dome ...
- www.securities.io — Rocket Lab Targets 2027 for Neutron First Launch After Dome ...
- daily.dev — Neutron’s first launch slips again amid trouble with carbon ...
- www.techtimes.com — Rocket Lab Delays Neutron Rocket Launch to 2027 After Carbon ...
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