Check out the Hellhound, a 375-mph 3D-printed turbojet-powered exploding drone competing for a spot in the US Army's arsenal
A couple feet long, rounded, relatively lightweight, and easy to make, this exploding drone can fly fast and attaches to a rucksack.
That's the basics of Hellhound, a loitering munition made by Cummings Aerospace based in Huntsville, Alabama. This kind of weapon features characteristics of both missiles and drones, delivering surveillance and strike in a single package.
The Hellhoud recently completed flight tests and a few demonstrations before being submitted to a top US Army drone competition. Earlier in the year, it was tested in the Army's Expeditionary Warrior Experiment 2025.
Loitering munitions are becoming more prolific and playing a role in conflicts like the war in Ukraine. As a turbojet-powered drone, the Hellhound is unlike many other loitering munitions. The top speed is nearly three times faster than the popular Switchblade made by AeroVironment.
Hellhound wrapped up flight tests earlier this year, and the S3 version of it, which Business Insider saw up close at SOF Week 2025 in Tampa, Florida, is in submission for the US Army's Low Altitude Stalking and Striking Ordnance, or LASSO, program.
LASSO requires select companies to build 135 munitions and 35 prototypes immediately. It's a new-start program, the goal of which is to give infantry brigades better stand-off weapons capabilities.
Cummings Aerospace's CEO Sheila Cummings told BI that much of how her company is thinking about the Hellhound has been with modularity, ease of manufacturing, and warfighter feedback in mind. She also said the system is affordable but wouldn't disclose a specific cost or price range.
At first glance, the Hellhound loitering munition, sitting inside its case, looks a bit like a boogie board. Weighing less than 25 pounds, the weapon is fairly lightweight and easy to pick up and carry. There are straps on the bottom that can attach it to a soldier's rucksack, something Cummings said was a key suggestion from soldiers who wanted the system to be as man-portable as possible.
The majority of a Hellhound is 3D printed. Cummings estimated that, depending on the number of printers, they could fully print a Hellhound in a few days at least and a week at most.
Any part that isn't 3D-printed is commercial off-the-shelf, an increasingly important quality for the weapons and systems that the US military acquires as it speeds up the process.
The US military has been pushing for more of its systems, especially the uncrewed weapon systems, to be suitable for production on a large scale, interchangeable capabilities and components, and supply chain flexibility.
There's a growing realization that for future wars, inexpensive, easily made weapons will be needed in mass in a protracted, large-scale conflict against a major rival like China.
A key development of the Ukraine war has been how Ukraine has created an arsenal of cheap drones for surveillance and precision strike. That's something militaries around the world are watching closely given how effective it's been.
"We're really trying to minimize the exquisite, custom products," Cummings told BI, explaining that the Hellhound's payload, too, can be interchanged with different sensors or warheads depending on what the mission requirements are simply by twisting and unlocking the nose.
A defining characteristic of the Hellhound is its turbojet engine. Cummings said it's a differentiator for the system and company as it not only reduces fuel usage but also increases speed. Cummings Aerospace advertises the Hellhound as being able to fly faster than 375 mph with a range of around 25 miles.
The turbojet engine is also a commercially available product, Cummings said. She said the munition's shape, sleek and long, also aids with aerodynamics. Cummings Aerospace has imagined Hellhound swarms in the field providing a mix of intelligence, reconnaissance, and surveillance and strike.
The focus on loitering munitions — which can, as the name suggests, loiter in an area before diving in to strike a target — comes amid efforts to give troops on the ground stand-off strike capabilities. These weapons have seen widespread use in the war in Ukraine, and Russian loitering munitions, like its Lancet drones and Iranian-made Shaheds, have been high-value targets for Kyiv's forces.
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