Castelion Blackbeard

A startup's bet that hypersonic weapons can be made cheap and in bulk. Castelion — founded by ex-SpaceX engineers — is building Blackbeard, a Mach 5+ long-range strike missile aimed at roughly $300,000 a round and 500 a year, applying the drone war's "affordable mass" logic to a class of weapon that legacy primes deliver at $40 million-plus per round. The thesis is compelling; almost none of it is proven yet.

Overview

Blackbeard is the first product of Castelion, a US defense startup founded in 2022 by former SpaceX engineers (CEO Bryon Hargis): a low-cost, mass-producible hypersonic strike missile flying at Mach 5+ (over 3,800 mph) with sustained flight and terminal maneuver. Its entire reason for existing is economic — to take the "affordable mass" logic that cheap drones brought to the battlefield and apply it to hypersonics, a category previously owned by a few primes at tens of millions of dollars per round. It exists in two variants off one core: a ground-launched version for the US Army and an air-/sea-launched version for the US Navy's MACE program. For BattlePolicy it is the strike-missile face of the neo-prime "affordable mass" story. The essential caveat up front: nearly every hard specification below is a budget-document goal or requirement, not demonstrated performance — the program's momentum (contracts) is real; its capability is not yet proven.

🔒 The full Castelion Blackbeard file is for BattlePolicy Pro members. Below the line: development history, design and capabilities, variants, the combat record, advantages and limitations, comparable systems, outlook, the full specifications table, our sourcing, and the analyst assessment — procurement, suppliers and the BattlePolicy verdict. Unlock the full file with BattlePolicy Pro →