Currently, the fastest air-breathing aircraft is the SR-71, which accelerates to slightly over Mach 3.

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"The WG-3 GPS truly leverages our experience in this category, " said John Carlson, Sr.

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With its flexible flight time, Mach 3 speed, and ability to fly at altitudes above 80, 000 feet, the SR-71 is able to photograph more than 100, 000 square miles of territory in a single hour .

CENTERFORSECURITYPOLICY: Center for Security Policy | Congress Must Preserve A Vital Strategic Reconnaissance Capability �� The SR-71