This past March, President Donald Trump announced that Boeing would build the Air Force’s newest stealth fighter, the F-47. At the same time, the Navy’s long-quiet effort to field a new carrier-based stealth aircraft has now reached a mature development stage behind closed doors.
The program began fifteen years ago, when China’s rapid military expansion raised alarms within the Pentagon. In response, the Navy secretly launched an initiative to build a next-generation, long-range, low-observable aircraft for carrier strike groups. The result is the experimental F/A-XX, a fighter-attack concept that behaves more like a stealth strike platform—one capable of flying extended distances and using artificial intelligence to manage unmanned aircraft in combat.
Both Boeing and Northrop Grumman have already flown prototype aircraft. These test models are thought to be stored in secure facilities in Missouri and Florida. For reasons the Pentagon has not explained, a final selection decision remains pending.
Congress has added nearly $1 billion in supplemental funding to push the program forward. Representative Ken Calvert warned that without a sixth-generation fighter, the Navy could face “a dangerous disadvantage” in any conflict with China.
A design built for the China challenge
Concept art shows the F/A-XX with smooth stealth shaping, an F-35-style cockpit, and diamond or delta-configured wings for lift and range. Its defining characteristics include:
- Longer reach: The Navy projects at least a 25 percent increase in range over current fighters. Analysts estimate up to 1,000 miles—enough, with refueling and new long-range weapons, to cover the Pacific.
- Twin-engine layout: Engines buried deep within the fuselage reduce infrared signature, an area where U.S. propulsion technology still outpaces China’s.
- New stealth coating: The design is expected to use the light gray “bird-gray” material seen on the B-21 bomber, replacing the older black coating.
- Internal weapons storage: All munitions will be carried internally, with saw-tooth bay doors to preserve stealth.
- Drone support: MQ-25 Stingray tankers will accompany long-range missions, and the aircraft will be able to direct unmanned wingmen.
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Fox News noted that Trump places particular emphasis on stealth capability, particularly after the B-2 bomber strike on Iran’s nuclear sites. Yet delays within the Pentagon still introduce significant risk.
China, meanwhile, has moved quickly. It flew a carrier-capable stealth demonstrator last year and commissioned its third carrier, Fujian, in November. Construction has already begun on a fourth carrier—larger, and possibly nuclear-powered. Over the next several years, China could operate up to six carriers.
In this environment, the Navy argues that the F/A-XX must enter service as soon as possible to restore long-range, low-observable strike capacity for U.S. carrier groups.
What a sixth-generation fighter means: stealth, AI, and range
Warriormaven reports that key variables remain unresolved—the aircraft’s stealth configuration, range, production numbers, airframe lifespan, and most importantly, whether it can keep pace with China’s evolving capabilities.
Even so, analysts widely expect the F/A-XX to become “the most stealthy, fastest, and most capable sea-based fighter in the world.”
Concept illustrations suggest a fighter aircraft built around a smooth, bomber-like shape—something that could blend B-21-level stealth with F-22-class speed and agility. AI-driven sensing and coordination could shape many of the aircraft’s core systems.
The F-35 will remain upgradeable into the 2070s, but its airframe may not support the most advanced future AI, sensors, or long-range weapons. A new platform is required.
In the Pacific, range equates to survivability. The F-35C’s 1,300-mile range forces carriers to move within roughly 500 miles of the Chinese mainland to conduct strikes.
But China’s DF-26 missile can reach 2,000 miles—too far for carriers to risk moving forward.
This is why the Navy insists on both the MQ-25 and a longer-range fighter. If the F/A-XX achieves a combat radius similar to the F-47—around 2,000 miles—carriers could remain farther from danger while still delivering effective strikes.
