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It is this trajectory from above that makes it such a formidable weapon against tanks, because the vehicles' entry hatches are on the top side, and that is where they are most vulnerable.
Lighter than other anti-tank systems that require a tripod, the Javelin can be launched from a soldier's shoulder.
The projectile is ejected a few meters from the launcher before the propulsion system kicks in, which allows a soldier to be less easy to spot and even allows it to be used from inside a building.
A "fire and forget" type weapon, the target can be locked in before firing and the missile is fully self-guided. The shooter can take cover even before the missile hits its target.
According to a US soldier consulted by AFP, it is very easy to use.
"If you played a video game, you can use it," he said.
And unlike other missiles, which are generally disposable after use, the Javelin has a fire control unit that is equipped with GPS and an infrared camera with the ability to zoom in close on a target, and which is reusable any number of times.
It is on this unit that the disposable tube housing the missile is attached.
The fire command unit is valuable because "you can use it without ammunitions, to track and look" at the enemy, said the American soldier.
Manufactured by US weapons manufacturers Raytheon and Lockheed Martin, the Javelin costs $178,000, including the launch system and missile, according to the Pentagon's 2021 budget.
Each replacement missile costs around $78,000.