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Compared to steam catapults, EMALS weighs less, occupies less space, requires less maintenance and manpower, can in theory be more reliable, recharges quicker, and uses less energy. Steam catapults, which use about 1,350 lb (610 kg) of steam per launch, have extensive mechanical, pneumatic, and hydraulic subsystems. [8]
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 United States is replacing carrier steam catapults with linear induction motors. The system is called the electromagnetic aircraft launch system (EMALS). An electromagnetic wave traveling through the motor propels the armature along its length, pulling the plane with it. This system allows more precise control over the launch power, causing ...
The size and manpower requirements of steam catapults place limits on their capabilities. A newer approach is the electromagnetic catapult, such as Electromagnetic Aircraft Launch System (EMALS) developed by General Atomics. Electromagnetic catapults place less stress on the aircraft and offer more control during the launch by allowing gradual ...
An improvement on the Nimitz class' steam-powered catapult, the EMALS has a higher launch capacity, sending aircraft barreling down the 300-foot track at over 150 miles per hour.
A drawing of the EMALS's linear induction motor. The Electromagnetic Aircraft Launch System (EMALS) launches aircraft by means of a catapult employing a linear induction motor rather than the steam piston used on the Nimitz class. The EMALS accelerates aircraft more smoothly, putting less stress on their airframes.
CATOBAR (catapult-assisted take-off but arrested recovery [1] or catapult-assisted take-off barrier arrested recovery [2]) is a system used for the launch and recovery of aircraft from the deck of an aircraft carrier. Under this technique, aircraft launch using a catapult-assisted take-off and land on the ship (the recovery phase) using ...
Replacing traditional steam catapults, the Electromagnetic Aircraft Launch System (EMALS) will launch all non-VTOL carrier aircraft. This innovation eliminates the traditional requirement to generate and store steam, freeing up considerable area below-deck.