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DefDex

Deployable passive sonar system.

Timeline

No milestones recorded for Sea Spear yet. The timeline fills in as unveilings, tests, contracts and deliveries are sourced.

Sources1

  1. 1.

    Ultra Maritime · Supports: System

    “BRAINTREE, Massachusetts – Ultra Maritime has successfully demonstrated a new integrated active-passive sonar solution capable of providing persistent surveillance across contested maritime environments. During the U.S. Navy’s 2026 Lanternfish exercise, the company combined its Sea Spear deployable passive sonar with its newly developed SSQ-125B active sonobuoy to passively detect and actively localize unmanned underwater vehicles (UUVs), as a major step toward validating Ultra Maritime’s acoustic architecture designed for the future of autonomous counter-UUV and anti-submarine warfare (ASW).”

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