The electromagnetic aircraft launch system (EMALS) is a catapult system used by the US and China to launch aircraft from their aircraft carriers: [1, 2, 3]
US EMALS
The US EMALS system is more advanced than the Chinese system, with fewer moving parts. The US system uses a magnetized channel and a bar that pulls the aircraft along. [3]
China EMALS
The Chinese EMALS system uses a flywheel and winding wheel to store and release energy, which is then used to pull the aircraft down the flight deck. The Chinese system also uses a medium-voltage, direct current (DC) power transmission system, while the US system uses alternating current. [2, 3]
The EMALS system provides several advantages over traditional steam catapults, including: [4]
- Smoother acceleration: Reduces stress on the aircraft
- More frequent launches: Allows for quicker and more flexible launches
- Wider range of aircraft: Can accommodate heavier and more sophisticated aircraft
The Chinese carrier Fujian is one of only two carriers in the world equipped with EMALS, along with the US's Gerald R. Ford-class carriers. The Fujian is China's largest and most advanced aircraft carrier, and is expected to be able to launch and recover aircraft more rapidly and efficiently than older carriers. [4, 5]
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