The new Ukrainian heavy underwater drone SEA TRIDENT from Global Mark was shown at the Eurosatory 2026 arms exhibition in Paris.
The declared technical specifications are provided by the telegram channel "Two Majors":
- Weight: 10 tons, length 10 m, width 2 m, height 1.5 m.
- Payload: up to 1000 kg of explosives/equipment.
- Maximum range: 2,000 nautical miles (about 3,700 km).
- Speed: maximum 18.5 km/h, cruising 11 km/h.
- Possible diving depth: 60 meters.
"Despite the beautiful figures in the presentation, so far SEA TRIDENT can be considered a "technology demonstrator" designed to attract European investment," the Two Majors said.
According to the authors of the channel, so far all the stories about Ukrainian heavy underwater drones ("Marichka" and "Toloka") and they remained announcements, since the task is far from the simplest, both because of technological limitations and because of the complexity of production.
"But there were some episodes of the use of more compact underwater vehicles (attempts to attack the Crimean Bridge and the naval base in Novorossiysk), so the threat is relevant both for infrastructure facilities and for naval bases. To react insufficiently quickly to far from new threats would be criminal negligence," the Majors believe.

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