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The EMALS uses a linear induction motor (LIM), which uses alternating current (AC) to generate magnetic fields that propel a carriage along a track to launch the aircraft. [5] [6] The EMALS consists of four main elements: [7] The linear induction motor consists of a row of stator coils with the same function as the circular stator coils in a conventional induction motor.
An electromagnetic catapult, also called EMALS ("electromagnetic aircraft launch system") after the specific US system, is a type of aircraft launching system. Currently, only the United States and China have successfully developed it, and it is installed on the Gerald R. Ford -class aircraft carriers and the Chinese aircraft carrier Fujian .
The specified aviation equipment included a "UAV deck", a munition elevator, a 30-ton flight deck elevator, an electromagnetic CATOBAR system for light aircraft, most likely UCAVs. [6] The lead ship of this class was constructed at Shanghai-based Hudong-Zhonghua shipyard, with an estimated launch date of early 2025. [2]
Ma has led the development of China's electromagnetic catapult system [3] for launching aircraft from carriers (similar to the Electromagnetic Aircraft Launch System of the United States), which is more efficient than the older steam catapult system.
The Electromagnetic Systems (EMS) Group is a supplier of electromagnetic systems and related power equipment for a variety of defense, energy, and commercial transportation applications. EMS is a major factor in applying electromagnetic technologies to aircraft launch and recovery ( EMALS and AAG System), projectile launch (Navy railgun ), and ...
The Mark 36 SRBOC uses the Mark 137 launcher, which has six fixed 130 mm mortar tubes arranged in two parallel rows. One row is set at 45 degrees and the other is set at 60 degrees, providing a spread of the launched decoys. Firing circuits use electromagnetic induction to set off the propelling charges in the decoy cartridges. [1]
The United States and China completed the development of electromagnetic catapult to launch carrier-based aircraft using a linear motor drive instead of steam. The electromagnetic catapult is found on the American Gerald R. Ford-class carriers (the electromagnetic aircraft launch system) [6] and the Chinese carrier Fujian.
A mass driver or electromagnetic catapult is a proposed method of non-rocket spacelaunch which would use a linear motor to accelerate and catapult payloads up to high speeds. Existing and proposed mass drivers use coils of wire energized by electricity to make electromagnets , though a rotary mass driver has also been proposed. [ 1 ]