Rocket Lab has delayed the maiden flight of its 42-meter Neutron rocket to 2027. The postponement follows the discovery of defects in the composite dome elements of the first stage fuel tanks, specifically voids found between layers of carbon fiber.
The company identified these issues during the manufacturing process, which utilizes automated machinery to lay carbon fiber for liquid oxygen and methane tanks. CEO Peter Beck stated that while the defects might not cause immediate failure, the company prioritizes structural reliability over meeting earlier deadlines.
To address the issue, Rocket Lab has adjusted its manufacturing workflow. A new rear dome has already been produced with improved quality. The team is currently working on the front dome, with completion expected by the end of 2026.
Following the installation of the new components, the first stage will undergo a series of tests. If the current schedule holds, these preparations will conclude in the first quarter of 2027, after which a new launch date will be announced.
The Neutron rocket was first unveiled in 2021 with an initial launch target of 2024. Since then, the debut has been repeatedly delayed due to various technical challenges, including a previous pressure test failure of a fuel tank.
