The U.S. Navy is betting that a startup can succeed where legacy defense giants have stumbled. On April 24, 2026, the service awarded Castelion Corp. a contract modification worth nearly $105 million to push the company’s Blackbeard hypersonic weapon toward flight testing and integration on F/A-18E/F Super Hornets. According to reporting from the Wall Street Journal, the Navy aims to begin those tests by 2027, a timeline that would be remarkably fast by Pentagon standards.
Castelion, founded by engineers with backgrounds at SpaceX and Anduril, has positioned itself as a new breed of weapons maker focused on speed of delivery and production cost. The company also recently closed a $100 million private funding round, per the Journal, giving it a combined war chest that few defense startups can match. The question now is whether Blackbeard can clear the technical hurdles that have tripped up far larger programs.
What the contract confirms
The core facts come from the Department of Defense contracts notice published April 24. Castelion received modification P00001 to a previously issued order under a basic ordering agreement with Naval Air Warfare Center Weapons Division. The $104,998,566 in funding is tied to Small Business Innovation Research Phase III work under topic code AF231-D026 and covers two specific deliverables: meeting “final early operational capability requirements” and completing “test and integration configuration.”
That language matters. “Final early operational capability requirements” signals the program has moved well past paper studies and early prototyping. The Navy is paying for hardware that must demonstrate it can fly and physically fit on a real aircraft. SBIR Phase III contracts allow the government to scale up proven technology without a full open competition, and while Phase III awards of this size are uncommon, they are not unprecedented for programs the Pentagon wants to accelerate.
Federal SBIR records fill in additional detail. The original award, listed under the title “Low-Cost Highly Manufacturable Long-Range Strike Weapon Production,” describes a program built around scalability, cost reduction, and supply chain resilience, all leading to flight testing. Those are not afterthoughts. They are the program’s founding design principles, a deliberate contrast to the cost overruns that have plagued other hypersonic efforts.
Why the Super Hornet, and why now
The choice of the F/A-18E/F Super Hornet as Blackbeard’s first carrier aircraft is pragmatic. The Super Hornet remains the backbone of Navy carrier air wings, with well-understood weapons integration processes and a large operational fleet. Fielding a new weapon on a mature, widely deployed airframe lets the Navy compress the timeline from contract to combat capability. Whether Blackbeard eventually migrates to the F-35C or other platforms is not addressed in the contract, but using the Super Hornet as a proving ground is a common first step.
The timing also reflects a broader urgency. The United States has watched China deploy the DF-17 hypersonic glide vehicle and Russia field the Kinzhal air-launched ballistic missile, both designed to defeat existing missile defenses. Washington’s own track record has been uneven. The Air Force canceled the AGM-183A Air-Launched Rapid Response Weapon in March 2023 after repeated test failures. The Navy and Army’s joint Conventional Prompt Strike program, while still active, has faced schedule pressure and rising costs. Against that backdrop, the Pentagon has increasingly turned to nontraditional companies, hoping that commercial engineering culture and venture capital urgency can break the cycle of delays.
What we still don’t know
For all the contract dollars involved, the public record is thin on what Blackbeard actually is. Neither the Defense Department notice nor the SBIR abstract discloses the weapon’s speed class, range, warhead type, or propulsion method. Whether it is a boost-glide vehicle, a scramjet-powered cruise missile, or something else entirely remains unconfirmed in any available government document. The SBIR listing describes a “long-range strike weapon” optimized for low cost and manufacturability, but those are programmatic goals, not performance specs.
The 2027 flight-test target also carries a significant caveat. That date appears in the Wall Street Journal’s reporting but is absent from the official Navy contracts notice and the SBIR database. The government language references “final early operational capability requirements” without pinning down a calendar year. No Navy official has been quoted on the record setting that deadline, and no formal program milestone document has been released. Readers should treat 2027 as a reported ambition, not a locked schedule.
Unit cost is another open question. The SBIR abstract emphasizes affordability and supply chain resilience, and Castelion’s pitch has centered on producing hypersonic weapons at a fraction of legacy program costs. But no baseline price-per-round figure appears in any official source, making direct comparisons to ARRW or Conventional Prompt Strike impossible for now. The proof will come when production numbers and per-unit pricing surface in future budget documents.
What to watch next
The clearest signal of whether Blackbeard stays on track will be future contract actions under the same basic ordering agreement. Additional modifications or new task orders would indicate continued funding and schedule confidence. A long gap without new activity, or a significant reduction in scope, would point to trouble. Defense acquisition programs routinely slip, and hypersonic weapons have proven especially prone to setbacks across multiple services and countries.
For the Navy, the stakes extend beyond a single weapon. If Castelion delivers a working, affordable hypersonic missile on something close to the reported timeline, it would validate a broader Pentagon strategy of using SBIR pathways and venture-backed startups to field advanced weapons faster. If the program stumbles, it will feed skepticism about whether commercial-style speed can survive contact with the realities of weapons integration, testing ranges, and carrier flight decks. Either way, the next 18 months will be telling.
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*This article was researched with the help of AI, with human editors creating the final content.
