Long-endurance UUV demonstrates submerged launch capability during Navy exercise
NewsAugust 10, 2026
PORTSMOUTH, Rhode Island. Raytheon and Composite Energy Technologies demonstrated the submerged launch capability of HADALUS, a 34-foot unmanned undersea vehicle (UUV), during a U.S. Navy exercise, Raytheon announced in a statement.
The vehicle completed a series of missions on a Navy undersea test range, including operations while submerged, the statement reads. Raytheon says the demonstration is intended to support development of a single autonomous platform capable of detecting, reacquiring, and engaging targets during one mission.
HADALUS has a six-foot cross section and an endurance of more than 2,000 nautical miles, according to the company. The UUV uses a free-flooded carbon-fiber exoskeleton designed to support payload capacity while reducing vehicle cost.
Raytheon and Composite Energy Technologies developed the prototype in less than 18 months from the initial concept through in-water testing, the statement says.
The effort included integration of the launcher, sonar, electronics, and other mission systems before the Navy exercise. The companies say the platform is intended for long-endurance autonomous undersea operations.
