# Navy test reports submerged launch of HADALUS unmanned vehicle

_Monday, August 17, 2026 at 7:03 PM EDT · Robotics · Latest · Tier 2 — Notable_

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The US Navy carried out a submerged launch demonstration of HADALUS, a low-cost, long-endurance unmanned undersea vehicle, in sea trials at Portsmouth, Rhode Island, according to a report citing Raytheon. The vehicle conducted end-to-end operations in a single mission, including detecting, reacquiring and acting against a target. Raytheon and Composite Energy Technology developed the 34-foot prototype in under 18 months; the companies say it is designed to cost roughly one-third to one-fifth as much as comparable long-endurance vehicles.

## Sources

- [New Atlas: Technology-Innovation-Outdoor News](https://newatlas.com/military/unmanned-undersea-vehicle-demoes-launch-capability/)

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Canonical: https://techandbusiness.org/newswire/TX4DCrzIOQB0XazZgwc9F4
Retrieved: 2026-08-18T02:38:11.254Z
Publisher: Tech & Business (techandbusiness.org)