![]() The soldier can adjust the width and height of the track gates to frame the target. At this time, the soldier will see two track gates appear in the site view. After the soldier has located and identified an enemy, he or she can switch to missile tracking mode. The soldier's task is to detect, identify, lock on and fire upon enemy units. The computer creates virtual enemy units that move along the real terrain. To the trainee, it appears that the CLU is giving him or her a live view of actual terrain. The computer interprets the soldier's movements and sends corresponding video data back to the CLU. As the soldier moves around to survey the simulated terrain, the CLU sends information to the computer. It can detect changes in pitch, roll and yaw. The CLU simulator uses gyroscopes and accelerometers to track the unit's movements. A computer supplies the images to the BST - a thick cable connects the BST to the computer. The trainee looks through the simulator's site and sees images of real terrain - the Army uses actual infrared-imagery rather than computer-generated terrain. The CLU simulator looks and feels like the real thing. The instructor uses a sophisticated computer program that combines real-world images with virtual enemy units. The class is a two-week course in which the soldier becomes familiar with the Javelin's systems and capabilities. Soldiers get a chance to work with the BST in a classroom setting. With that in mind, the Army invested in a special training program to acquaint soldiers with the Javelin system. ![]() Even so, the Army doesn't expect soldiers to be able to pick up an unfamiliar piece of equipment and use it effectively on the first try. Engineers designed the CLU to be easy to operate. The Javelin system packs a lot of sophisticated technology into a compact and portable package. The soldier chooses the mode based upon the defenses the target possesses and the missile does the rest. The direct-path mode tells the missile to fly directly toward the target in a straight path. Selecting the top-attack mode tells the missile to fly in an arc and then dive sharply to hit the target directly overhead. The soldier firing the missile can choose from two attack modes: top-attack or direct-path. The maximum effective range for a Javelin missile is 8,200 feet (2,500 meters). Normal operation requires two soldiers per launcher - one to site targets and fire while the other reloads the launcher between shots. It's 3.5 feet long (approximately 1 meter). A loaded Javelin launch unit weighs 49.5 pounds (about 22.5 kilograms). ![]() Even without a missile launch tube, a soldier can use a CLU to perform surveillance on an enemy at night. The CLU also has a computer system that soldiers use to define targets. Infrared cameras allow the soldier to operate the Javelin launcher in the dead of night and they provide up to nine times magnification. The CLU contains a sight and monitor system that allows the soldier to view targets at up to four times magnification during the day. The interface for the Javelin system is the command launch unit ( CLU). The soldier can pull the trigger, look away and change positions before the enemy even knows it's under attack. That's because the missile has a sophisticated guidance system on it that will seek out the acquired target. The Army calls the Javelin a fire-and-forget missile. It's a portable antitank weapon - a soldier mounts the weapon on his or her shoulder, acquires a target and fires. Consider the Javelin anti-armor missile launcher.
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