The lamprey is nobody’s favorite fish. It’s jawless, eel-shaped, and it gets through life by suctioning its round mouth onto something bigger and letting the host do all the swimming. A biologist will tell you that’s parasitism. An engineer might tell you it’s the cheapest long-range travel strategy in the ocean, because the lamprey crosses entire seas while spending almost none of its own energy.<\/p>\n
Lockheed Martin sides with the engineer. On February 9, the largest defense contractor on the planet unveiled an underwater drone<\/a> named after the fish and built to behave like it. The Lamprey Multi-Mission Autonomous Undersea Vehicle, or MMAUV, suctions itself onto the hull of a friendly warship or submarine, hitchhikes into the operating area without touching its own battery, recharges off the water flowing past it, and then lets go with full batteries and a payload bay holding torpedoes, acoustic decoys and small aerial drones. The press release is literally subtitled “The Deep Doesn’t Let Go,” so nobody at Lockheed is pretending the fish thing is subtle.<\/p>\n One thing worth stating up front: Lamprey is a company-funded project with a test vehicle behind it, not a Navy program. No contract has been announced, and Lockheed hasn’t published range, speed or depth figures. What it has published is still worth taking seriously, mostly because of how the thing attacks the one problem that has tortured underwater drones for decades.<\/p>\n Seawater is brutal to autonomy. Radio waves barely travel through it, GPS doesn’t reach it, sunlight quits a few hundred feet down, and there’s no charging network at the bottom of the Pacific. So every autonomous underwater vehicle lives and dies by the battery it left port with, and a big chunk of that battery gets burned just commuting to the job site.<\/p>\n The industry has two standard answers. One is to go big: Boeing’s Orca XLUUV<\/a> stretches to 85 feet with its payload module and runs a diesel-electric setup Boeing has said is good for roughly 6,500 nautical miles. The other is to change chemistry: Germany’s Greyshark runs on hydrogen fuel cells<\/a> and claims 16 weeks underwater, and a Canadian drone called the Envoy recently parked on the seabed for 16 days straight<\/a> on a single hydrogen fill. Both approaches work. Both are expensive ways of carrying your own energy around.<\/p>\n Lockheed’s answer is to not carry it. Lamprey swims up under a ship or submarine that’s already headed the right way and grips the hull with suction devices, sixteen of them according to Defense Express<\/a>, and the host ship doesn’t need any modification to carry it. “This can hitch a ride and not use power while it’s doing it,” Mark Johnson, Lockheed’s program director for unmanned maritime solutions, told Naval News<\/a> at the WEST 2026 naval conference in San Diego.<\/p>\n Then it gets better. While attached, the drone deploys hydrogenerators, small turbines spun by the water rushing past the moving host, and uses them to charge its batteries in transit. Think of a bike dynamo taped to the side of a destroyer. That flips the usual math of underwater operations: instead of arriving at the mission area with a half-drained battery, Lamprey shows up topped off, and Johnson says those same generators can also power the mission equipment riding in the bay.<\/p>\n The business end is a 24-cubic-foot payload bay, about 0.68 cubic meters, or roughly the interior of a large kitchen refrigerator. Lockheed built it as an open-architecture space, so the contents change with the mission. The loadouts shown so far include up to three retractable launchers with two tube-launched aerial drones apiece, lightweight anti-submarine torpedoes, acoustic decoys that imitate the sound signatures of ships and submarines, electronic warfare packages, and deployable seabed sensors. The National Interest<\/a> frames the concept as a force multiplier, an extra set of eyes and weapons attached to whatever friendly hull happens to be going that way.<\/p>\n The vehicle itself maneuvers on four thrusters, two at the stern and two on the sides. In Lockheed’s concept animation, broken down in detail by The War Zone<\/a>, it communicates through a retractable mast near the surface or via nodes on the seabed, and at one point it feeds targeting data to an F-35 overhead, which then puts a missile into a target ship. So the same machine can sit silent on the bottom collecting intelligence, rise to launch aircraft, or fire a torpedo itself.<\/p>\n Lockheed sorts all of that into two operating modes, Assured Access and Sea Denial. The first is about getting into contested water quietly: surveillance, intelligence collection, precision strike. The second is about making that water unusable for the other side: electronic disruption, decoys, direct attack. The company’s renderings also show groups of Lampreys resting together on the seabed, waiting, which reads as clever distributed warfare or the setup for a horror movie, depending on which navy you’re in.<\/p>\n Defense programs usually move at the speed of paperwork. A requirement gets written, a competition gets run, a contract gets awarded, and somewhere years down the line hardware appears. Lamprey skipped the queue. Company representatives at WEST 2026 said the vehicle was “developed in just 14 months using internal resources,” as Defense Express reported from the show floor, and Johnson told Naval News the speed came from stacking two decades of internally funded undersea technology into one platform.<\/p>\n “The modern battlespace demands platforms that hide, adapt and dominate,” said Paul Lemmo, vice president and general manager of Sensors, Effectors & Mission Systems at Lockheed Martin, in the launch announcement. Strip out the brochure language and the message is simpler: the company decided the Navy would want this and spent its own money to find out. This is not a startup making a bet it can’t cover, either. Lockheed booked $75.0 billion in sales in 2025 and tops SIPRI’s ranking of the world’s arms producers, so funding one drone internally is less a gamble than a rounding error.<\/p>\n The timing isn’t random. The U.S. Navy has spent the last few years pushing unmanned systems toward the Pacific under concepts like Hellscape, the plan Naval News connects to the Lamprey reveal, which leans on swarms of autonomous machines to complicate any move against Taiwan. China, meanwhile, has been floating experimental submarine hulls strange enough to puzzle satellite analysts<\/a> and parading extra-large underwater drones of its own. A contractor building a hull-riding parasite drone on its own dime is what reading the room looks like in this industry.<\/p>\n At WEST 2026 the company also put numbers on what comes next: variants between 20 and 35 feet long (6 to 10 meters), and a second test vehicle planned before the end of the year. That second part matters more than it sounds. Naval News describes the new build as an iteration on the existing testing drone, which means a first Lamprey already exists as hardware, not just as a render.<\/p>\n Now for what Lamprey is not. There is no announced Navy program of record behind it, no published price, and no public figures for range, speed, depth rating or how quiet it actually runs. Everything above comes from Lockheed’s own materials and what reporters pulled out of the company at a trade show. That’s normal for a concept reveal, and it’s also a reason to keep the champagne corked.<\/p>\n The harder question is one Defense Express raised directly: nobody has explained how Lamprey navigates and communicates underwater across long distances. Physics is unkind here. Radio essentially doesn’t propagate through seawater, which is why submarines have been dragging antennas toward the surface for generations. The concept video’s answer, a retractable mast near the surface plus acoustic nodes on the seabed, covers some scenarios and leaves others wide open, especially for a vehicle meant to operate alone in contested water.<\/p>\n And when it comes to the torpedoes, there’s still a human in the chain. U.S. doctrine requires a person to approve lethal engagements, so however autonomous the swimming gets, the shooting still needs a signature. Defense Express notes some missions could run fully autonomous, but weapons release isn’t one of them.<\/p>\n Whether the Navy ever writes a check is a separate question, and nothing public says that decision is close. The part that’s already real is the design idea, and it’s honest biomimicry: the lamprey never solved the energy problem of crossing an ocean, it just gripped onto something that already had. Lockheed looked at one of the sea’s least loved animals and saw a free ride with a built-in charging port. Somewhere, a very ugly fish is owed royalties.<\/p>\n","protected":false},"excerpt":{"rendered":" The lamprey is nobody’s favorite fish. It’s jawless, eel-shaped, and it gets through life by suctioning its round mouth onto … <\/p>\nHitchhiking fixes the problem every underwater drone has<\/h2>\n
The 24-cubic-foot bay can launch aircraft from underwater<\/h2>\n
Fourteen months and zero Pentagon money<\/h2>\n
No contract yet, and one big unanswered question<\/h2>\n