capexScore 35/100Watch
Archimedes engine production scaled to 1 engine every 11 days; running 3-4 hotfire tests per day to qualify for Neutron reusable launch vehicle
Peter Beck· Rocket Lab· Space· 2025-08-07· about Rocket Lab (RKLB)
“the Archimedes engine manufacturing line is now capable of knocking out an engine every 11 days... We're running the engine to full mission duration and the operational test cadence is is heading up to three or four hotfires a day now seven days a week as we work diligently through all the engine qualification program.”
Why it matters
Demonstrates significant capex deployed to advanced propulsion manufacturing and testing infrastructure. Indicates Rocket Lab's confidence in Neutron development trajectory but also signals capital-intensive production scaling ahead.
Investment implication
Engine manufacturing line represents major fixed-cost infrastructure. Component suppliers to engine production (valve manufacturers, materials suppliers, test facility equipment) benefit from sustained demand. This capex commitment suggests Neutron first flight timing is credible.