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A Titan 4B rocket is set to launch into space Wednesday, marking the final flight of a Titan 4 rocket. Set to launch a classified payload for the U.S. National Reconnaisance Office (NRO), the Titan 4B booster is set to liftoff from California's Vandenberg Air Force Base sometime between 12:00 p.m. and 4:00 p.m. EDT (1600-2000 GMT) on Oct. 19. The Titan 4 rocket family, built by Lockheed Martin, debuted in 1989. This week's flight, set to lift off from Space Launch Complex 4E, has been delayed since 2003. ============================================ Still America's most powerful unmanned booster -- at least for...

MINNEAPOLIS, Feb. 20 /PRNewswire-FirstCall/ -- ATK (Alliant Techsystems) (NYSE: ATK - News) solid propulsion and composite technologies supported the recent launch of a Lockheed Martin Titan IV B rocket from Cape Canaveral Air Force Station, Fla., that successfully placed into orbit a Defense Support Program (DSP) satellite. Two Solid Rocket Motor Upgrade (SRMU) boosters manufactured by ATK Thiokol Propulsion in Magna, Utah, provided the initial lift for the Titan IV B rocket. The boosters, which measure 112 feet in length and 10.5 feet in diameter, hold nearly 700,000 pounds of propellant and supply 3.4 million pounds of thrust. The SRMU...

A Lockheed Martin Titan 4B rocket lifted off from Cape Canaveral at 12:29 a.m. EDT (0429 GMT), carrying a giant reconnaissance satellite for the U.S. National Reconnaissance Office. Follow the rocket's climb to orbit in our mission status center.

<p>The Air Force launched a top-secret satellite Tuesday for the National Reconnaissance Office, which operates the United States' fleet of spy spacecraft.</p> <p>A Titan IV-B rocket was used to launch the large spacecraft, believed to be an electronics listening satellite, into a position 22,300 miles above the Earth's equator.</p>