China's Shandong aircraft carrier

China, reportedly, envisions having a fleet of up to six aircraft carriers by 2035

The rapid growth of the People's Liberation Army Navy (PLAN) has been a point of concern for the US and countries like India and Japan.

China commissioned its first home-built aircraft carrier, the Shandong, in December last year. The Shandong was based on a design derived from China's first aircraft carrier, the Liaoning, which was a former Soviet Navy vessel, acquired from Ukraine. According to Chinese state-run media, construction of the Shandong had begun at the Dalian shipyard in Liaoning province in 2013.

On Saturday, Hong Kong-based media outlet South China Morning Post had reported that China is ramping work on its third and fourth aircraft carriers at the Jiangnan shipyard in Shanghai. "The Type 002 aircraft carrier—the country’s third carrier and the second to be domestically developed—has started the final assembly process," the South China Morning Post reported, quoting sources. It noted that work on the third aircraft carrier had slowed down due to the COVID-19 pandemic. Construction of the third aircraft carrier reportedly began in 2015. In December, the state-run Global Times reported the third aircraft carrier could be combat-ready by 2025.

“Workers are also starting the keel-laying for the new carrier’s sister ship. Both ships have been built by the Jiangnan Shipyard outside Shanghai," the publication reported. Laying of the keel, the base structure of a ship's hull, marks the beginning of full construction. Initial work on the fourth aircraft carrier had started in 2018, but was stopped in 2019, the South China Morning Post reported.

“Construction for the second Type 002 will be faster than the first one because workers have learned and overcome a lot of problems building the first one. It’s a challenging job because the Type 002 is our country’s first domestically designed aircraft carrier," the South China Morning Post quoted a source as saying.

The third and fourth carriers will be different in design from the Liaoning and Shandong and will be significantly larger. Based on analysis of satellite imagery, US think tank Centre for Strategic and International Studies has estimated that the third aircraft carrier would have a displacement of up to 85,000 tonnes, nearly 15,000 tonnes more than the Shandong. In comparison, the Indian Navy's INS displaces about 45,000 tonnes. Chinese state-run media claim the third aircraft carrier could carry over 50 aircraft.

The Liaoning and Shandong use a 'ski-jump' to launch fighter aircraft; a ski-jump is a curved structure at the end of the flight deck, which allows a jet to take off at lower speed than required for sustained flight. Ski-jumps are used on aircraft carriers that lack catapults, which can impart momentum to the aircraft. A ski-jump limits both the number of jets that can be launched at a time and also restricts the weight at which an aircraft can take off.

In comparison, the third and fourth aircraft carriers for the People's Liberation Army Navy are expected to use electromagnetic catapults to launch aircraft. Such systems are currently used only on one class of aircraft carrier, the US Navy's Gerald Ford class. Electromagnetic catapults use a linear induction motor, instead of a steam piston, used on conventional steam catapults. Electromagnetic catapults can employ varied degrees of power to launch aircraft of different weights.

The presence of electromagnetic catapults would, theoretically, allow these Chinese aircraft carriers to launch aircraft at shorter intervals. It would also allow combat aircraft to take off at maximum possible weight, imparting greater combat range and higher weapons load and allow operation of larger aircraft like airborne-early warning systems.

The South China Morning Post reported the third aircraft carrier could operate a stealth fighter as its main aircraft. Media reports have claimed China envisions having a fleet of up to six aircraft carriers by 2035 to effectively challenge the US Navy.