The United States Navy has been awarded to GuideTechsubsidiary of Palladyne AIthe development of a new air-launched missile conceived as a low-cost option within high-performance weapons programs. The company, based in Kansas, was acquired by Palladyne AI in November 2025.
The weapon is the Air-Launched Rapid Response Missile either ALRRMa system designed to fly above Mach 4 (some 4,940 km/ha speed almost hypersonic) and achieve objectives over 640 kilometers away from high altitude.
‘The 2025 National Security Strategy explicitly states that the United States must develop “next generation missiles in light of the clear and urgent need for cost-effective, high-performance strike capabilities” for the US Armed Forces,’ said Ben WolffCEO and president of Palladyne AI, in a statement.
Palladyne AI presents the program as a response to that demand for long-range ammunition with lower production costsat a time when the Pentagon seeks to expand volume without giving up benefits.
Propulsion for a Mach 4 missile
Systems designed to travel at speeds faster than the speed of sound operate in extreme aerothermal conditionswith surface temperatures that exceed 1,000 °C. This forces us to resort to expensive materials to maintain the structural resistance of the missile. That’s where Palladyne AI tries to differentiate ALRRM. Compared to other developments of this type, the company maintains that its proposal can come close to these benefits at a much lower cost.
The key, according to the company, is in the use of a solid fuel ramjet engine with an air intake (SFRJ), an architecture that eliminates oxidants on board and allows sustained flight at high speed with a lighter design and, in theory, with greater range than a conventional rocket-based system.
‘As the US Navy has identified and our recently awarded contract demonstrates, the ALRRM system is designed to respond to this need, offering Near-hypersonic speed and range for a fraction of the cost‘ says Wolff.
The company also plans that the missile will carry a warhead of 68 kilos without leaving strict limits of weight and size. On paper, that would make it compatible with current fighters, including fifth generation ones that require ammunition that can be carried in internal bays and adapted to low observability requirements.
A new attack class for fifth-generation fighters
Palladyne AI maintains that the ALRRM opens its own category within air-surface weapons with a more compact missile, but with enough speed, range and payload to execute deep strikes in contested environments. The company’s thesis is that this combination allows it fit into platforms where space and weight are a critical limitationespecially in fifth generation fighters.
‘We believe there is no other missile currently available to the US Armed Forces that combines the speed, range and payload capacity of the ALRRM, with this size and pricecreating a new attack class for fifth-generation fighters: carried with stealth, near hypersonic speed and capable of deep strikes,’ concludes Wolff.
The U.S. Navy’s interest in the ALRRM reflects the shift toward more affordable, scalable weapons that can be deployed in greater numbers. According to the company, affordability is becoming a critical factor in purchasing decisions as competition intensifies.