# Ukraine’s New SIRENA Armed Sea Drone Targets Russia’s Black Sea Weakness

*Friday, June 19, 2026 at 12:04 PM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-06-19T12:04:51.136Z (2h ago)
**Category**: conflict | **Region**: Eastern Europe
**Importance**: 8/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/8012.md
**Source**: https://hamerintel.com/summaries

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**Deck**: Ukraine has unveiled SIRENA, an unmanned combat trimaran equipped with electronic warfare systems and AIM-9M missiles, signaling a new phase in its campaign against Russian forces at sea. The system’s speed, payload, and jamming capabilities show how Kyiv is betting on armed sea drones to keep pushing the Russian Navy away from Ukraine’s shores and supply routes.

Ukraine is turning the Black Sea into a laboratory for next‑generation naval warfare, revealing a new armed sea drone designed to hunt enemy aircraft and disrupt sensors as well as threaten ships. The SIRENA unmanned trimaran, unveiled at the Eurosatory defense exhibition, is built not just to deliver explosives, but to fight for control of the electromagnetic spectrum and the airspace above the waterline — a clear signal that Kyiv intends to keep pressuring Russia’s navy and coastal assets with increasingly sophisticated unmanned systems.

According to technical details released at the event, SIRENA is a high‑speed trimaran hull capable of reaching 90 kilometers per hour, carrying up to 300 kilograms of payload, and operating for up to 24 hours. It is fitted with the Pelican V1 radar for situational awareness and the Scorpion V5 electronic warfare suite, which can jam signals across a wide band from 300 to 6000 MHz with an effective suppression radius of up to 30 kilometers. Most strikingly, the platform is shown armed with AIM‑9M Sidewinder air‑to‑air missiles, adapted for use from the unmanned surface vessel.

For Ukrainian forces and coastal communities, tools like SIRENA are ways to keep Russian warships and aircraft farther from ports, grain terminals, and coastal cities that have come under repeated missile and drone attack. Every additional kilometer that a Russian vessel or patrol aircraft must retreat to avoid exposure to sea‑skimming drones or electronic jamming increases the warning time for civilians and reduces the density of fire Russia can bring to bear on critical infrastructure.

For Russian sailors and pilots, the calculus becomes more complex. An armed, radar‑equipped, jamming‑capable sea drone presents multiple threats at once: it can potentially interfere with communications and navigation, complicate targeting for ship‑borne weapons, and, with the right integration, threaten low‑flying helicopters or aircraft using adapted air‑to‑air missiles. Even if actual missile engagements remain limited at first, the need to account for such possibilities forces changes in tactics, flight profiles, and patrol patterns.

Strategically, SIRENA extends a pattern Ukraine has already used to notable effect: applying relatively low‑cost, expendable unmanned platforms to attrit a more powerful adversary’s fleet. Ukrainian sea drones have previously damaged and sunk Russian vessels, pushed parts of the Black Sea Fleet eastward, and helped reopen limited shipping lanes from Odesa despite Russian attempts at blockade. Adding robust sensors and electronic warfare to that mix moves the concept from one‑way attack craft toward persistent, networked naval assets.

The choice to display SIRENA at a major international defense show is also a message to Western partners and defense industries. Ukraine is not only a consumer of modern weapons, but an active developer of systems that address real combat needs under intense pressure. That experience gives its designs a credibility and urgency that pure paper concepts lack, and raises the prospect of future co‑development or export once the war is over.

The broader implication is that unmanned surface vessels are rapidly evolving from niche tools into central elements of maritime strategy for states that cannot match a rival’s tonnage ship for ship. A fast, hard‑to‑detect, heavily jamming trimaran like SIRENA can complicate even a blue‑water fleet’s operations close to contested coasts, much as cheap drones have done to armored vehicles and artillery on land.

In practical terms, the shareable insight is clear: Ukraine is trying to turn the Black Sea from a space where Russian ships project power into one where any large platform is an expensive target under constant, asymmetric threat. The psychological effect on crews — knowing that small, unmanned attackers may be lurking beyond radar clutter — is part of that pressure.

Observers should watch for signs of SIRENA or similar platforms appearing in combat footage, changes in Russian naval posture around Crimea and the western Black Sea, and any announced upgrades to the system’s armament or autonomy. Evidence that such drones are being fielded in numbers, rather than as one‑off prototypes, would confirm that Ukraine’s maritime innovation is reshaping not just the rhetoric, but the reality, of naval balance in the region.