Keywords: US Navy 030114-N-3911W-501 Phalanx MK-15 Close In Weapons Systems (CIWS) fires a high-speed computer controlled, radar guided, 20 mm Gatling gun.jpg en At sea aboard USS Theodore Roosevelt CVN 71 Jan 14 2003 -- One of the ship s Phalanx MK-15 Close In Weapons Systems CIWS fires a high-speed computer controlled radar guided 20 mm Gatling gun during a training exercise Phalanx is capable of firing 4 500 rounds per minute and provides ships of the U S Navy with a last-chance defense against anti-ship missiles and littoral warfare threats that have penetrated other fleet defenses Phalanx automatically detects tracks and engages anti-air warfare threats such as anti-ship missiles and aircraft Roosevelt is currently underway conducting training missions in the Atlantic Ocean U S Navy photo by Photographer s Mate 2nd Class Luke Williams RELEASED 2003-01-14 030114-N-3911W-501 Navy http //www navy mil/view_image asp id 4022 U S Navy photo by Photographer s Mate 2nd Class Luke Williams PD-USGov-Military-Navy USS Theodore Roosevelt CVN-71 flight deck Phalanx CIWS firing M61 Vulcan |