X-Bow delivers 600th rocket motor for Disruptor strike drone

X-Bow Systems has delivered its 600th rocket-assisted takeoff motor to AEVEX Aerospace under a $12.2 million contract to supply thousands of RATO kits and solid rocket motors for the Disruptor strike drone, giving the U.S. Army’s newest long-range unmanned system the ability to launch from unprepared surfaces and confined spaces without a fixed catapult or runway infrastructure.

The delivery milestone arrives after The Defence Blog reported on the Disruptor’s operational debut at Exercise Arcane Thunder 26, where soldiers from Multi-Domain Command Europe’s Innovations cell conducted night launches of the system at the National Training Center at Fort Irwin, California.

That exercise confirmed the Disruptor as the U.S. Army’s long-range tier within its Launched Effects family, a drone capable of carrying a 22.5 kilogram warhead across distances of up to 600 kilometers in standard configuration and up to approximately 1,400 kilometers with an extended-range engine variant. The X-Bow contract, announced in April 2026, adds a critical layer to that capability: the ability to put the Disruptor in the air from virtually any location a vehicle can reach, not just from prepared launch sites with fixed infrastructure.

Rocket-assisted takeoff is not a new concept in military aviation, but its application to Group 3 unmanned systems at this scale and through this manufacturing method is. X-Bow’s RATO system uses proprietary additive-manufactured solid propellant, a production technique in which the propellant is built layer by layer using a process comparable to industrial 3D printing rather than cast or pressed using traditional manufacturing methods.

X-Bow describes this as the first high-volume use of additive-manufactured solid propellant for a Group 3 unmanned aircraft system. The significance is both technical and industrial: additive manufacturing allows for tighter control over propellant geometry and burn characteristics, and it scales more efficiently than conventional solid rocket motor production when demand spikes rapidly, as it has across the U.S. drone procurement ecosystem since 2022.

The Group 3 classification covers unmanned aircraft between 25 and 600 kilograms, flying between 1,000 and 5,500 meters at speeds of 185 to 460 kilometers per hour. Systems in this category are large enough to carry meaningful strike payloads and sophisticated sensor packages, but small enough to be transported and operated by ground units without dedicated airfield support. The tension in that capability profile has always been the launch requirement: a drone that weighs up to 93 kilograms at takeoff and needs to reach operational altitude quickly either requires a pneumatic catapult, a significant ground infrastructure investment, or a rocket boost. X-Bow’s RATO kits resolve that tension by providing the boost in a compact, field-deployable package that attaches to the aircraft and burns away after liftoff.

The contrast with pneumatic catapult launchers, the traditional alternative for fixed-wing drones that cannot take off under their own power, illustrates exactly why RATO capability matters in a contested environment. Pneumatic catapults are large, heavy systems that require significant setup time, level ground, and precise calibration before a launch can occur.

Once deployed, they create a visible, stationary signature that is difficult to conceal and takes considerable time to break down and relocate. On a modern battlefield where adversary reconnaissance drones, artillery, and precision missiles can target a detected launch site within minutes, a catapult represents both a tactical liability and a mobility constraint. A RATO kit attaches to the aircraft, burns for seconds, and leaves nothing behind. The launch point can be a dirt road, a field clearing, or any surface a vehicle can access, and the unit can be gone before the smoke clears.

The practical effect on the Disruptor’s operational footprint is considerable. A unit equipped with RATO-capable Disruptors can set up a launch point in a field, a road, a clearing, or any other surface accessible by vehicle, conduct the mission, and relocate before an adversary can respond. That kind of shoot-and-scoot flexibility matters enormously in contested environments where fixed infrastructure is a targeting liability. Modern adversaries with precision strike capability, including the peer and near-peer threats the U.S. Army designs its doctrine around, treat any detectable, recurring launch signature as a target. A system that can launch from an unprepared surface and move immediately after reduces that signature to near zero.

X-Bow demonstrated the RATO² system to dozens of international special operations forces at SOF Week in Tampa, Florida, earlier this month. SOF Week is an annual gathering that brings together special operations communities from across allied and partner nations, and it serves as one of the more consequential venues for evaluating emerging capabilities outside the standard acquisition pipeline. The audience for that demonstration, international SOF units from allied countries, reflects the export potential that sits behind the domestic procurement story. Allies watching the Disruptor program develop, and watching X-Bow’s motor production scale, are evaluating not just a weapon system but a supply chain they may eventually want access to.

The $12.2 million contract covers thousands of RATO kits and solid rocket motors, a production commitment that reflects the Army’s intent to field the Disruptor at meaningful scale rather than in limited experimental quantities. Producing motors in the hundreds and now past the 600-unit mark within months of the contract announcement indicates that X-Bow’s additive manufacturing process is performing at the throughput rates the program requires. For a U.S. defense industrial base that has faced repeated scrutiny over its ability to produce munitions and drone components at the volumes modern warfare demands, that production pace carries weight beyond the specific program it serves.

The Disruptor began its life as part of the classified Phoenix Ghost family, fast-tracked for Ukraine in 2022 and kept out of public view for years afterward. Its emergence into confirmed, photographed, officially acknowledged operational use over the past several months represents a program transitioning from wartime emergency development into deliberate, scaled procurement. The X-Bow motor contract is part of that transition, turning what was once a classified capability into an industrial program with suppliers, delivery milestones, and a production count that now runs past 600 and climbing.

A drone that can launch from anywhere is only as useful as the supply chain that keeps it flying. X-Bow is building that supply chain one motor at a time.