Image—Anduril
Anduril has unveiled “Thunder”, a Group 5 autonomous tiltrotor, at the outset of the 2026 Farnborough International Airshow. With a recent production contract in hand to build its Fury FQ-44A Collaborative Combat Aircraft (CCA) to fly alongside U.S. Air Force fighters, the defense tech firm is now adding a vertical take-off and landing (VTOL) uncrewed platform to serve as a loyal wingman for military rotorcraft.
Thunder is the defense variant of a dual-use rotorcraft under a joint effort with air taxi builder Archer Aviation aimed at leveraging the commercial company’s eVTOL know-how and rotor design.
As it has done with its fighter-drone sibling Fury, Anduril is marketing Thunder as an affordable attack asset that shares Anduril’s Lattice mission autonomy software. Company officials said three to six Thunder rotorcraft could fly in conjunction with U.S. Army AH-64E Apache helicopters carrying equivalent Apache payloads. Thunder is also posited as a wingman for the Army’s upcoming Bell MV-75, with Anduril’s Senior Vice President of Programs & Engineering posting that the aircraft “flies with the general speed and range of the Army’s newest tiltrotor, the Cheyenne II.”
In a press release, Anduril outlined a first flight target for Thunder in 2027.
CCA for Helos
Deriving conceptually from the U.S. military’s CCA effort for coupling UAS with manned fighter jets, Thunder is the latest in a growing list of programs aimed at developing an uncrewed wingman capability for rotorcraft. Last October, Boeing debuted perhaps the first major U.S. concept to pair a Group 5 UAS with Army helicopters under the moniker CxR.
The UK Ministry of Defence is involved in a similar initiative, having issued a tender at the beginning of the year to develop wingman drones to operate with British Army AH-64E Apaches. Notably, Anduril UK was one of four competing companies downselected in May to continue work for Project Nyx. At the moment, it is unclear whether Thunder is Anduril’s Project Nyx offering, or a related variant. Archer is also part of a consortium in addition to GKN Aerospace for the British program.
From an operational standpoint, Anduril states that Thunder’s design from the outset enables maneuver warfare and flight profiles that match those of attack helicopters. This includes “near-surface flight” using sensor inputs for “visual navigation, inertial positioning, and terrain feature mapping that enable Thunder to remain on course when GPS, visibility, and communications are degraded or denied.”
Military helicopter pilots fly the vast majority of their sorties at 500 feet AGL and below, using visual cues for nap-of-the-earth flight to exploit terrain for cover and concealment. Crucially, Thunder’s mission autonomy will need to adopt these characteristics, somewhat distinct from fixed-wing CCA flight, to fight successfully with military rotorcraft.
A shifting focus toward rotary-wing loyal wingman systems also recognizes the impact of drone warfare in Ukraine on the democratization of airspace. The war in Ukraine has underscored the importance of controlling the air littoral, emphasizing the role of cheap FPV attack drones while mostly sidelining exquisite manned combat aircraft such as fighters.
These warfare attributes—highlighting the use of both attritable and expendable systems—led, in part, to the 2024 U.S. Army decision to scrap a nearly $2 billion project to build a new manned scout rotorcraft. The progress of an uncrewed VTOL loyal wingman is a likely follow-on development from that strategic cancellation.
Performance Promises
Some lessons from Ukraine apply, but not all. Anduril’s Thunder and Boeing’s CxR concepts appear positioned to straddle the line between attritable and exquisite. The tiltrotor design, Group 5 size, and proposed performance characteristics suggest a highly capable aircraft. If Thunder does indeed generally match the speed and range of the MV-75 tiltrotor, this equates to roughly twice that of the Black Hawk helicopter—a critical feature for addressing the vast distance challenges Army Aviation faces in the Indo-Pacific.
Moreover, the payload outlook for Thunder is remarkably ambitious. Anduril’s press release says Thunder can carry several modular combinations of munitions, air-launched effects, electronic warfare, and C-UAS payloads. Specifically, in addition to 12 C-UAS effects, a loadout could include ten air-to-surface missiles such as Hellfire, JAGM, or Anduril’s Barracuda-100M. An AH-64E Apache can carry 16 Hellfire missiles, indicating Thunder’s missile capacity is over 60 percent of that of the Army’s 23,000-lb max gross weight primary attack helicopter.
Thunder’s speed, range, and payload are enabled by the overall tiltrotor design, reinforcing tiltrotor performance advantages over conventional helicopters. With Boeing’s CxR concept and Anduril/Archer’s Thunder both based on tiltrotor technology, the defense aerospace industry and the Pentagon are increasingly aligning on a tiltrotor future. Once the MV-75 Cheyenne II is fielded, the Army will join the remaining U.S. major service branches in flying tiltrotor aircraft.
Tiltrotors Ahead
Meanwhile, the Pentagon is advancing next-generation development of uncrewed VTOL technologies alongside Bell. In March, DARPA designated its SPRINT-X demonstrator aircraft, built by Bell Textron Inc., as X-76. The SPRINT-X program builds on Bell’s tiltrotor expertise and a Stop/Fold rotor system to explore high-speed flight (over 400 knots) from a runway-independent aircraft. Funding for the program continues to grow. DARPA requested $62.1 million for SPRINT in FY27, up from $13 million in FY24.
This gathering of tiltrotor momentum continues to strengthen the probability that some form of Manned-Unmanned Teaming (MUM-T) coupled with tiltrotor technology will dominate future U.S. defense rotary-wing initiatives. Prospective programs on the horizon include the Navy’s Future Vertical Lift (Maritime Strike) effort to succeed its MH-60R/S Seahawk fleet in the late 2030s and the Marine Corps’ Future Attack Strike (FASt) effort, which will, in part, replace marinized AH-1Z attack and UH-1Y utility helicopters in the 2040s.
Thunder’s debut marks another example of the sea change underway in the military aerospace market. The trend continues to show legacy airframers challenged by contemporary defense tech companies and commercial firms. Bell and Boeing’s combined tiltrotor work on the V-22 spans more than forty years, while Anduril and Archer were founded less than a decade ago.
The inclusion of newer tech-focused entrants is catalyzing fresh business approaches and partnerships. Two days after Thunder’s unveiling, Archer announced the companion commercial variant, Halo, which shares a common design and hybrid-electric propulsion system. The dual-use application promotes scalable production supported by a commercial supply chain to lower costs and reduce overall risk. It’s a strategy that Anduril has prioritized with its Fury CCA, and one that could alter the blueprint for success in defense aviation programs.
A former naval officer and Seahawk helicopter pilot, Jon currently leads the Military Aerospace and Weapons Systems group at Forecast International. He specializes in current and emerging military fixed and rotary-wing aircraft. With over a decade of experience in military aviation, operations, and education, he forecasts a diverse range of defense and naval systems.
Influenced by his time as a former Presidential Management Fellow and International Trade Specialist at the Department of Commerce, Jon gained insights into government operations and global markets.
Before joining Forecast International, he served as an NROTC instructor and Adjunct Assistant Professor at the University of Texas, teaching undergraduate courses in naval history, navigation, defense organization, and naval operations and warfare.
