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U.S. F-47’s “Buddy” YFQ-42A “Dark Merlin” Crashes During Test Flight; CCA Program Testing Paused

The CCA prototype developed by General Atomics Aeronautical Systems, the YFQ-42A, crashed during a routine test flight at a peculiar time, as it is competing for the US Air Force’s (USAF) Collaborative Combat Aircraft (CCA) contract.

The YFQ-42A “Dark Merlin” is GA-ASI’s production-representative prototype for the USAF’s CCA Increment 1 program.

It is a jet-powered, semi-autonomous “loyal wingman” type drone designed to fly alongside crewed fighters like 6th-gen F-47 and perform air-to-air and other missions.

The drone crashed soon after takeoff on April 6.

“A YFQ-42A Collaborative Combat Aircraft test platform experienced a mishap following takeoff from a company-owned airport in the California desert on Monday at approximately 1 p.m. Pacific. No one was injured in the incident. Flight test operations have been paused temporarily in an abundance of caution,” the company subsequently said in an official news statement.

“Safety is our top priority, for our people and the public,” General Atomics spokesman C. Mark Brinkley said. “In this case, established procedures and safeguards worked as intended, and there were no injuries. We’re going to take a close look at what happened, gather all the data, and allow the investigation to guide us moving forward.”

The manufacturer noted in the press statement that several production-representative YFQ-42As are regularly flown under the CCA’s operational test and evaluation program and are in low-rate initial production for the Air Force.

Notably, the USAF’s CCA program was officially launched by former Secretary of the USAF Frank Kendall in 2023. It envisions deployment of a significant number of modular, reasonably priced, and operationally useful unmanned aircraft that can fly alongside manned fifth- and sixth-generation aircraft.

These drones are meant to provide additional combat effects, supporting crewed aircraft by carrying extra air-to-air munitions, extending sensor coverage, and executing missions that would otherwise put human pilots at risk.

GA-ASI was one of two companies selected in 2024, alongside Anduril, to build and test these prototypes. By March 2025, the YFQ-42A, developed by General Atomics, and the YFQ-44A, from Anduril Industries, were the first uncrewed aircraft to receive a fighter designation, as reported by EurAsian Times at the time.

Both drones are currently in development under the first phase, Increment 1, which aims to field a minimum viable capability to provide immediate force. The USAF needs to select one of the two prototypes before it can begin purchasing, although reports indicate that a downselect or dual award for Increment 1 production is anticipated by the end of FY2026.

The crash is unlikely to affect the YFQ-42A’s prospects in the Increment 1 phase, according to experts. However, the pause in testing would cause minor delays, as the drone would lose flight hours and data-collection time on autonomy, mission systems, and integration.

Statement on YFQ-42A Flight Incident
YFQ-42A (Via GA-ASI)

Moreover, prototype crashes or mishaps are common in fast-tracked unmanned programs.

The YFQ-42A is based on the XQ-67A Off-Board Sensing Station (OBSS), which was created by GA-ASI as part of the Low-Cost Attritable Aircraft Platform Sharing (LCAAPS) program for the Air Force Research Laboratory (AFRL). The XQ-67A had validated the “genus/species” concept, which focuses on building multiple aircraft variants from a common core chassis for cost efficiency and scalability.

The YFQ-42A focuses on air-to-air operations while supporting reconnaissance, strike, and other missions through manned-unmanned teaming. It emphasizes affordable, mass-produced goods for rapid, large-scale deployment in contested environments.

The General Atomics YFQ-42A fighter drone reached a major milestone in August last year with its maiden flight. “This milestone showcases what’s possible when innovative acquisition meets motivated industry,” the Secretary of the Air Force, Troy Meink, said at the time. “In record time, CCA went from concept to flight — proving we can deliver combat capability at speed when we clear barriers and align around the warfighter.

The drone made its first flight using Collins’ mission software in February 2026, the Air Force announced. The “mission” autonomy software will enable the CCA drone to perform complex actions in response to simple pilot instructions from a human aircraft.

US CCA Program Is Advancing & How!

While most information about the CCA drones under test remains shrouded in secrecy, an infographic published by USAF chief David Allvin last year revealed that the service plans to deploy them operationally by 2029.

Additionally, we also know that these platforms will be stealthy, with a fighting radius of more than 700 nautical miles, or about 1,296 kilometers. In comparison, the F-22 Raptor’s combat range is 590 nautical miles, or roughly 1,100 kilometers, while the F-35 Lightning II’s is 670 nautical miles, or over 1,200 kilometers.

The USAF is reportedly requesting about $1 billion in fiscal 2027 to begin purchasing CCA, and is expected to decide which production drone to buy in the next six months. 

According to budget documents published by the Pentagon comptroller, CCA procurement is expected to total $996.5 million in 2027 and an additional $150 million in advance procurement to support 2028. 

However, the documents do not specify how many of these uncrewed aircraft the Air Force hopes to purchase with that kind of money.

The service has invested over $1.91 billion since fiscal 2024 in developing CCAs. However, this is the first time the Air Force has budgeted purchase funds for CCAs, along with an additional $1.37 billion for research and development, bringing the program’s total 2027 request to $2.37 billion. 

Before the USAF can start buying CCAs, it has to decide what it wants to do for “Increment 1” of the program and choose between the YFQ-42A or Anduril’s YFQ-44.  

Both designs emphasise stealth, internal weapons bays, semi-autonomous air-to-air roles, and affordable mass production. In fact, the USAF is running parallel tests with different autonomy software: Collins Aerospace’s Sidekick on the YFQ-42A and Shield AI’s Hivemind on the YFQ-44A. Meanwhile, Northrop Grumman’s YFQ-48A has reportedly emerged as a dark horse contender.

As previously explained by EurAsian Times, the Pentagon has had ambitious plans to mass-produce these CCAs at a significantly lower cost than conventional fighter jets. The projected cost of the CCA drones, for example, is between US$25 million and US$35 million each, as noted by Frank Kendall, whereas an F-35 Lightning II aircraft can cost between US$80 million and US$115 million, depending on the variant.

Anduril's YFQ-44A Begins Flight Testing for the Collaborative Combat Aircraft Program | Anduril
Anduril’s YFQ-44A (Via Anduril)

The concept is that using inexpensive, attritable drones to accompany costly, manned aircraft will improve the survivability of the manned platform and mission success, particularly when facing a near-peer foe in contested environments. For instance, China has assembled an extremely advanced Anti-Access/Area Denial (A2/AD) system that is likely to make manned operations extremely challenging in a conflict.

According to reports, during its initial deployment, these CCAs will primarily operate as airborne “missile trucks,” flying in formation with crewed jets to deliver additional firepower. However, there have already been talks about extending their responsibilities to encompass intelligence collection, electronic warfare, surveillance, reconnaissance, and potentially future fully autonomous missions.

The USAF reportedly plans to order approximately 100-150 drones in Increment 1. However, according to previous reports, the service was seeking about 1,000 of these aircraft, or loyal-wingman drones, across several iterative development cycles.

This large number may also lead to modifications and design evolution over time.

Notably, the largest increase in the Air Force’s $30.64 billion total budget for aircraft purchases in 2027 is due to the introduction of CCA funding.

Moreover, plans for Increment 2 of the CCA program, which will launch a new generation of drones with improved capabilities, were reportedly being refined by the USAF. Although their precise mission profiles and technological advancements remain unknown, these next-generation CCAs are expected to be more advanced and perhaps, more expensive.

That said, the YFQ-42A crash is unfortunate but normal for this stage of a cutting-edge program, especially one designed with attritability in mind. The bigger test for the USAF CCA program will be the upcoming production decision, execution of the FY2027 purchase, and real-world integration with manned fighters.