U.S. air defence system in Baghdad
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The U.S. has deployed C-RAM air defence systems at its embassy in Baghdad’s Green Zone to counter an escalation of rocket attacks by Iranian-backed Kata’ib Hezbollah militia forces
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C-RAM (Counter-Rocket, Artillery, Mortar system) Unit cost: $5.6 million

Elevation: +85° to -25° at 115° per second

Generator and computer systems

Dual antennas: Primary Ku-band, 360-degree radar continually scans for incoming threats

Forward Looking Infrared: FLIR cameras detect incoming fire

Fire-control: Secondary radar triggers cannon

Ammunition: 20mm multi-purpose tracer, self-destroying. Price: $27 per round

Shoot-down rate: 60-70 percent

Nose incendiary
Incendiary
High explosive
Rounds self-destruct before they hit ground
Tracer

M61A1 Vulcan Gatling rotary cannon: Fires between 3,000 to 4,500 rounds per minute

Helical magazine: Feeds 1,550 rounds at up to 75 per second

Rotation: 300° at 115° per second
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Sources: Raytheon, General Dynamics, Global Security, AFP © GRAPHIC NEWS