Electromagnetic ejection is the use of electromagnetic energy to push the ejected object to move outward, actually? An electromagnetic gun. Used to use mechanical ejection, such as springs, rubber bands.
Compared with electromagnetic catapult? The difference of steam catapult is that it does not need steam to drive the piston, but uses electricity to drive it.
The main application range of electromagnetic ejection is the short-range acceleration of large load, and the typical one in military affairs is the take-off ejection of carrier aircraft on aircraft carrier.
Electromagnetic emission technology is in the experimental research stage all over the world. Although the electromagnetic ejection started a little late, due to its potential application prospect, the research of this technology is still highly valued. 1988, the U.S navy and Kaman aerospace co. planned to jointly develop a ship-borne electromagnetic catapult model, with the goal of accelerating a fully loaded F- 14 fighter with a weight of 36 T to 150 knots within an acceleration time of 3 s. The weight of this electromagnetic catapult is only one tenth of that of the existing steam catapult, which saves a lot of pipelines and is of great significance for the safe operation, weight reduction and speed increase of the ship.
The launching frequency of the catapult is much lower than that of the launcher. In the electromagnetic launcher, the air defense electromagnetic gun requires 500 rounds per minute and the anti-missile electromagnetic gun requires 60 rounds per second; Electromagnetic catapult can complete an ejection in a few minutes or even dozens of minutes.