Army Wants High-Energy Laser Weapons It Can Put On “Any Vehicle In The Motorpool”
The U.S. Army is pursuing a family of modular and scalable laser directed energy weapons that can be fitted to any vehicle in its inventory. The service sees this as key to expanding the operational use of lasers, particularly to provide an extra layer of defense against drone threats, and outside of dedicated units. The Army is already fielding high-energy lasers operationally on a limited basis, including along the border wth Mexico, but the technology has faced continued hurdles to more widespread use in recent years.
Army officials and industry representatives discussed what is currently called the Enduring-High Energy Laser (E-HEL) program during a panel discussion this week at the Association of the U.S. Army’s (AUSA) main annual convention, at which TWZ was in attendance. In September, AeroVironment received the first production contract under E-HEL to supply examples of its 30-kilowatt-class LOCUST X3 laser directed energy weapon system. The Army has already acquired earlier LOCUST variants, including vehicle-mounted and palletized types, through more experimental programs, and these are the systems now deployed along the southern border. The U.S. Navy has also at least tested a containerized version of LOCUST for shipboard use as part of its own larger laser ambitions.
“We’re focused on any vehicle in the motorpool. I want to try to integrate future capability of high-energy lasers into it,” Army Brig. Gen. Guy Yelverton, the Capability Program Executive for Defensive Fires with the Portfolio Acquisition Executive Office for Fires, said during the panel on Monday. “And, so, our E-HEL is on a sled. With that, I can look at integrating it onto multiple different vehicles.”
“And then, as I think about vehicle agnosticness, if I open up my aperture to MOS [military occupation speciality] agnostic, and ensure that it’s easy to train, easy to operate, I can not just focus on air and missile defense organizations,” he continued. “I can now look at any formation type to be able to put a high-energy laser capability into it for the counter-UAS [uncrewed aerial systems] fight.”
“That gives me even more opportunities to share this capability across all Army formations, and give our senior leaders [the] maximum amount of thought process and input into where the system goes, who the soldier is that’s operating it, and I’ve given them quite a solution,” he added. “It’s a great dilemma to have of where do I put all this capability.”
In 2022, the Army reactivated the 4th Battalion, 60th Air Defense Artillery Regiment (4-60th ADA) at Fort Sill, Oklahoma, as part of plans to field new laser-armed Directed Energy Maneuver-Short Range Air Defense (DE M-SHORAD) systems based on the 8×8 Stryker light armored vehicle. Reliability and other issues with DE M-SHORAD vehicles led the Army to shift focus, and 4-60th ADA has since assumed a more traditional air defense role. The problems with the DE M-SHORAD system are indicative of struggles that have dogged laser-directed energy weapon developments across the U.S. military, and that have led to several other programs being severely truncated or outright cancelled in recent years.
One of the Stryker-based DE M-SHORAD system prototypes. US Army One of the Army’s initial prototype DE M-SHORAD vehicles. US Army
The Army does now have the aforementioned LOCUST systems, including versions mounted on 4×4 Joint Light Tactical Vehicles (JLTV) and Infantry Squad Vehicles (ISV), as well as the palletized types. Those systems appear to be currently fielded on a more ad hoc level to units at forward locations.
A LOCUST system seen integrated onto a JLTV. AeroVironment
LOCUST is well suited to the Army’s current vision for fielding E-HEL without being tied to specific vehicles or unit types. At the core of the system is a turret with the laser beam projector, as well as built-in electro-optical and infrared video cameras for target acquisition and tracking. Other sensors, such as small-form-factor high-frequency radars and passive radio frequency signal detection systems on host vehicles, as well as off-board radars and other capabilities positioned elsewhere, can be used to cue the turret.
A close-up look at the turret on an earlier palletized version of LOCUST acquired by the Army. US Army
With the 30-kilowatt power rating, the new X3 versions of LOCUST the Army is acquiring now are still at the lower end of the power spectrum for laser directed energy weapons. All versions of LOCUST to date are geared explicitly toward countering small drones.
It is possible that the Army could field other types of laser directed energy weapon systems through E-HEL in the future. The service, in cooperation with other branches of the U.S. military, is also pursuing designs with far higher power ratings through separate programs.
Just being able to field LOCUST X3 more broadly would still offer valuable additional layers of defense against drones across different types of Army units. More broadly speaking, the central benefit that laser directed energy weapons offer is the promise of functionally unlimited magazine depth, though this is dependent on there being sufficient power and cooling capacity. This, in turn, translates to a
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