As China rapidly builds its largest and potentially first nuclear-powered aircraft carrier, the Type 004 may mark a decisive shift from regional sea denial toward sustained blue-water power projection across the Indo-Pacific.
This month, the Center for Strategic and International Studies (CSIS) released a report showing that China is rapidly constructing its fourth aircraft carrier, the Type 004, at the Dalian Shipyard in northern China, using commercial satellite imagery and open-source intelligence to track the vessel’s progress.
The report said prefabricated hull blocks first appeared in early 2025 and, within less than a year, had evolved into a recognizable carrier hull, underscoring the scale and speed of China’s shipbuilding industry.
Satellite images from May 2026 showed a hull measuring about 286 meters long and 46 meters wide, larger than China’s existing Fujian carrier at a comparable stage, with analysts suggesting the ship could eventually rival or exceed the US Navy’s 337-meter Gerald R. Ford-class supercarriers.
The report said evidence strongly indicates the carrier may be nuclear-powered, citing two large compartments believed to house reactor containment systems and earlier findings linking China’s 701st Research Institute to a land-based naval reactor prototype. The carrier will likely feature electromagnetic catapults, possibly four instead of three, enabling higher aircraft launch rates and greater blue-water power projection.
The Type 004 marks a major milestone in China’s military modernization and ambition to field a nine-carrier fleet by 2035.
The development of the Type 004 may reflect the iterative evolution of China’s carrier program – from refurbishing the former Soviet ski-ramp Varyag into the Liaoning, to building the Shandong, an improved copy, then to a conventionally powered catapult design in the Fujian, and now to a nuclear-powered design.
The construction timeline of China’s previous carrier, the Fujian, may give clues about the Type 004’s timeline. Eric Wertheim notes in a March 2026 Proceedings article that the Fujian was laid down in 2016 and launched in 2022, indicating a six-year build time.
Taking Fujian as a precedent, the Type 004 could be launched in 2032. In addition, the Type 004 would require a substantial number of escorts, which may indicate substantial parallel naval construction.
In a July 2024 report for the China Maritime Studies Institute (CMSI), Daniel Rice states that China’s carrier battle groups are arranged into three concentric defense zones, each centered around an aircraft carrier.
According to Rice, the outer defense zone, spanning 185-400 kilometers from the carrier, relies on carrier-borne J-15 fighter aircraft and submarines to conduct surveillance, tracking, anti-aircraft, anti-ship, and surprise-attack missions.
He says that the middle defense zone, extending 45-185 kilometers outward, is defended by large surface combatants including the Type 052D destroyer and Type 054A frigate, which provide anti-air, anti-ship and anti-submarine warfare capabilities through advanced radars, vertical launch systems, missiles and close-in weapons.
Rice adds that the inner defense zone, ranging from 100 meters to 45 kilometers, depends on point-defense and close-range air defense systems aboard the carrier and escort ships.
China’s emerging carrier doctrine may place its carrier groups under a “missile shield” of ballistic missiles capable of striking US bases and carriers across much of the Pacific. Such missiles may include the DF-21 medium-range ballistic missile (MRBM) and the DF-26 intermediate-range ballistic missile (IRBM), which are variously dubbed “Guam killers” or “carrier killers.”
According to Missile Threat, the DF-21 MRBM has a range of 2,150 kilometers and can be equipped with a nuclear or conventional warhead. It says that the anti-ship variant, the DF-21D, is armed with a conventional warhead and has an estimated range of 1,450 to 1,550 kilometers. Missile Threat also notes that in 2013, the DF-21 was tested in the Gobi Desert against a static mockup target simulating a US carrier.
Alongside the DF-21 MRBM, Missile Threat says that the DF-26 IRBM has a range of 4,000 kilometers and is China’s first conventional ballistic missile capable of hitting Guam. Missile Threat also notes that the DF-26B anti-ship variant has an active terminal seeker designed to engage moving targets, such as enemy carriers.
Aside from a missile shield, China could employ a submarine screen in the Pacific to secure its carriers. In a March 2026 testimony to the US-China Economic and Security Review Commission (USCC), Rear Admiral Mike Brookes stated that the People’s Liberation Army Navy (PLAN) is accelerating the production of nuclear submarines from less than one a year to much higher rates, upgrading three key facilities to sustain such a push.
China could employ its nuclear submarines far out into the Pacific to operate ahead of its carrier strike groups, gather intelligence or engage enemy forces that could threaten the main fleet.
Under that missile shield and submarine screen, China’s carriers may operate in a high-low force mix, with nuclear-powered carriers such as the Type 004 being deployed further out into the Pacific to deter US and allied intervention in a conflict over Taiwan.
At the same time, China’s conventional carriers would form part of a blockade force against the self-governing island, contributing to local air dominance. Aside from a Taiwan scenario, China’s conventional carrier force could pose a significant overmatch to rival navies in the South China Sea.
Chinese carrier operations farther out in the Pacific and into other regions, such as the Indian Ocean, would require corresponding sustainment capabilities. While a lack of foreign supporting infrastructure may have hampered China’s power projection efforts, particularly in the Indian Ocean, it may be making efforts to mitigate that vulnerability.
This month, the South China Morning Post (SCMP) reported that China may be building the world’s largest naval support ship that could be used to replenish carrier strike groups far out at sea.
Citing data from Jane’s, SCMP reports that the ship is estimated to be 271 meters long and 37 meters wide and is designed to carry food, fuel, and munitions for China’s carrier strike groups. SCMP also reports that, with such dimensions, the ship may displace 60,000 to 62,000 tons, making it larger than the US Navy’s 53,000-ton Sacramento-class ships.
However, China’s nascent carrier force may face key challenges. For one, China faces a well-documented shortage of pilots, which may have forced it to lower physical standards and accelerate its pilot training pipelines.
China also faces geographic constraints imposed by the First Island Chain and US-aligned forces in Japan, Taiwan and the Philippines. To enter the open Pacific, China must pass through heavily defended strategic chokepoints like the Miyako Strait and the Bashi Channel.
While China has rapidly expanded its carrier fleet, the PLAN still lacks the US Navy’s century-plus experience operating carriers in combat conditions. While observing US carrier operations could offset this lack of experience, it cannot fully replace real operational experience.
Ultimately, the Type 004’s significance may depend less on its size or propulsion than on whether the PLAN can master the operational and logistical demands of sustained blue-water warfare.