Defense startups source from the oil patch to scale production

Fifty thousand rockets and missiles have been expended by the United States since 2022, a consumption rate that has exhausted the surge capacity of traditional defense primes. In response, a cohort of venture-backed startups is looking outside the aerospace sector for inventory. Castelion, a developer of hypersonic weapons, is now sourcing high-temperature, stress-rated precision tubes from the oil and gas industry—hardware originally designed to withstand the pressures of hydraulic fracturing—as a substitute for specialty aerospace alloys that carry significantly longer lead times.

The strategy is one of industrial adaptation rather than discovery. By using automotive-grade Field-Programmable Gate Arrays (FPGAs) found in electric vehicles, these firms can acquire critical steering components at roughly 10% of the cost of traditional aerospace equivalents. Similarly, Anduril is utilizing bladeless centrifugal mixers borrowed from the pharmaceutical industry to process rocket propellant. These machines, used elsewhere to produce cancer treatments, can mix multi-hundred-kilogram batches in minutes, potentially increasing production throughput by a factor of ten.

This shift toward commercial off-the-shelf components addresses the immediate scarcity of solid rocket motors, which leaders at Boeing and RTX have cited as a primary constraint on missile production. However, moving from prototype to a military-grade production line remains a capital-intensive hurdle. The traditional process of casting, curing, and X-raying solid fuel still requires specialized infrastructure. To circumvent this, firms like X-Bow Systems and Firehawk Aerospace are deploying 3D-printed propellants, attempting to reduce production cycles from months to hours.