Within days of each other, two defence companies have unveiled new air defence interceptors aimed at defeating mass attacks by drones and missiles at a scale that legacy systems were simply not designed to address. Anduril's announcement covers the Steelfin family of interceptors, while Helsing has introduced Contra, an autonomous, AI-driven air defence system that comes paired with two new interceptor missiles.
The timing is not coincidence. It reflects a sharp shift in the threat environment, one driven in large part by Russia's production of jet-powered one-way attack drones rising to around 4,000 units monthly, a pace that outstrips the magazine depth of most Western air defence batteries.
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What Anduril Is Offering with Steelfin
Anduril's Steelfin is a modular surface-to-air interceptor family built around a common two-stage architecture. The first stage is a booster; the second is a terminal interceptor. What makes the design notable is that both stages are engineered for variation without redesign.
Different solid rocket motors can be accepted by the first-stage booster, giving operators the flexibility to alter range, launch configuration or packing density to suit the mission at hand. The terminal interceptor stage, however, remains constant across the family: every variant uses an identical airframe, avionics package, software suite, flight control system and set of interfaces. Because the terminal stage features open interfaces, alternative seekers and mission systems can be integrated without requiring a ground-up redesign of the missile.
That commonality has a direct manufacturing benefit. All Steelfin variants share a single production line, the same tooling, the same technicians and the same facilities. Anduril says it plans to produce several thousand Steelfin variants per year in the short term, according to the UK Defence Journal.
Steelfin has been engineered to slot into existing Western air defence infrastructure. It works with the M903A2 launcher associated with Patriot and with the Mk 41 vertical launching system, and also integrates with Typhon and next-generation containerised launchers. Compatibility with Aegis and IBCS fire control systems is built in. Ballistic testing using representative air vehicles has been completed by Anduril, and flight testing is scheduled to begin next year.
Anduril has already established a presence on the European continent. Latvia has chosen the company's Barracuda cruise missile family, and a dedicated UK arm has been set up to focus on autonomy, counter-drone capabilities and command software.
What Helsing Is Offering with Contra
Helsing's announcement is structured differently. Rather than a missile family, Contra is the overarching system, and the two new interceptor missiles, the AD-1 Inferno and the AD-2 Ambush, sit within it.
Contra draws on Helsing's Altra C2 platform, a software-defined, AI-driven command-and-control and recce-strike system. Built to detect and engage drone and missile threats simultaneously at a scale running into the hundreds or thousands, it brings together third-party interceptors, counter-UAS lasers and other counter-drone systems alongside Helsing's own weapons. Mid-course guidance for both the AD-1 and AD-2 is supplied by Contra radar ground stations.
Each of the two interceptors addresses a distinct portion of the engagement envelope. Jet-powered and able to loiter, operate in swarms and re-engage targets on multiple occasions, the AD-1 Inferno is well suited to persistent operations against drone swarms. The AD-2 Ambush relies on a solid rocket motor to reach Mach 2.5 with a range in excess of 20km, making it the weapon of choice against faster, higher-altitude threats. Helsing points to Russia's jet-powered Geran-4 and Geran-5 drones as the principal scenarios the system is designed to address.
On the question of cost, Helsing's stated ambition is to "significantly undercut" the unit price commanded by existing missile interceptors, with a promise of "high capability from affordable, mass-producible hardware." Volume production is intended to take place at facilities the company refers to as its Resilience Factories. Helsing has existing collaborative work with Ukraine spanning counter-drone and broader defence technologies.
The Common Thread: Volume and Cost
Both Anduril and Helsing have designed their systems around the same core problem: the cost-exchange ratio of modern air defence is broken. Shooting down a cheap drone with an expensive interceptor is unsustainable at scale, and the production rates of the threat are accelerating.
Steelfin's answer is a common production line that drives down unit cost while maintaining flexibility across variants. Contra's answer is an AI-managed system that co-ordinates cheaper interceptors and non-kinetic systems to engage far larger numbers of threats than a human operator could handle alone.
Neither company has published independent unit pricing, so the claims about affordability rest on the companies' own statements. What is independently verifiable is the architecture: modular launchers, open interfaces and software-defined command layers are consistent with the broader direction of Western procurement thinking.
Why Air Defence Interceptors Matter for European Defence
The announcement of two new interceptor families in the same week reflects a genuine acceleration in European and transatlantic defence investment, particularly in the counter-drone space. The scale of the drone threat from Russia has forced a reassessment of what volume of interceptors NATO-aligned nations need to hold in reserve, and neither legacy Patriot batteries nor short-range guns are sufficient on their own.
Anduril's compatibility with Patriot launchers and Mk 41 cells means Steelfin could slot into existing infrastructure without requiring entirely new ground equipment, which matters for nations already operating those systems. Helsing's Altra C2 layer is designed to be agnostic about which interceptors are loaded into it, which could make Contra a co-ordination layer rather than a closed ecosystem.
The Bottom Line
Two serious defence companies have, within the same week, announced systems designed to solve the same problem from different directions. Anduril has taken a hardware-first approach, standardising production to drive volume. Helsing has led with software and AI, building a command layer that can absorb whichever interceptors are available and co-ordinate them at machine speed.
For European militaries watching drone production rates climb, the question is no longer whether to invest in mass-producible interceptors; it is which architecture fits their existing infrastructure and procurement cycles. Both Steelfin and Contra will need to move from announcement to certified, fielded capability before that question can be fully answered.
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