The Fujian aircraft carrier features a full-length flight deck with a catapult launch system, making it more technically advanced than the other two Chinese carriers.
China has launched its third aircraft carrier, the first designed and built entirely in the country, marking a major military advance for the Asian superpower.
It is the "first catapult aircraft carrier wholly designed and built by China", said state broadcaster CCTV on Friday.
The Fujian will take years before it reaches operational capacity, as the Ministry of Defence has not announced a date for entry into service.
"Sailing and mooring tests will be carried out as planned after the ship is launched," CCTV reported.
Launched in a Shanghai shipyard to great fanfare, the Fujian is more technically advanced than the other Chinese carriers.
China has two other aircraft carriers in service. The Liaoning was commissioned in 2012 and the Shandong entered service in 2019.
Unlike the Fujian, they use a ski-jump style platform to launch aircraft and do not have a catapult launcher system.
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The announcement comes as tensions between China and the United States have ramped up significantly in recent weeks over self-ruled Taiwan, which Beijing views as a breakaway province to be seized by force if necessary.
Chinese warships have repeatedly sailed through the strait that separates the island from the mainland, and used fighter jets to repel freedom of navigation patrols from the US and its allies.
Chinese defence minister Wei Fenghe last week warned his US counterpart that Beijing would "not hesitate to start a war, no matter the cost" if Taiwan declared independence.
The US currently has by far the most aircraft carriers in service at 11 ships, followed by China and Britain at two each, according to defence magazine Janes.
Chinese President Xi Jinping has overseen a massive overhaul of the People's Liberation Army (PLA) since coming to power in 2012, and has vowed to build a "fully modern" force rivalling the US military by 2027.
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