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Electromagnetic Aircraft Launch System(EMALS) – The First Aircraft Launch Using EMALS

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Footage shows the first aircraft launch using (EMALS).

Its basicly used to launch aircraft from carriers using a linear motor drive instead of steam pistons used in conventional aircraft catapults. This technology reduces stress on airframes because they can be accelerated more gradually to takeoff speed than steam-powered catapults. EMALS also uses less fresh water, reducing the need for energy-intensive desalination. Compared to steam catapults, EMALS weighs less, occupies less space, requires less maintenance and manpower, is more reliable, and uses less energy. Steam catapults, which use about 614 kilograms of steam per launch, have extensive mechanical, pneumatic, and hydraulic subsystems. EMALS uses no steam, which makes it suitable for the Navy’s planned all-electric ships. The EMALS could be more easily incorporated into a ramp, which would reduce the aircraft’s takeoff speed and consequently the launch energy required. Compared to steam catapults, EMALS can control the launch performance with greater precision, allowing it to launch more kinds of aircraft, from heavy fighter jets to light unmanned aircraft. EMALS can also deliver 122 megajoules of energy, 29 percent more than steam’s approximately 95 megajoules. The EMALS will be more efficient than the 5-percent efficient steam catapults.

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