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March 3, 2011 / J. Shaw

Air Force's X-37B Space Plane Mission-March 4

This ought to get your mind off of angry union protesters and rising oil prices. On March 4th the Air Force is launching its secret space plane for its second mission.The very sad part is that this small plane is all that is left of the United States once proud space program. There are interesting things to click on in this article.SHAW

The U.S. Air Force’s secretive X-37B space plane is poised to launch on its second mission Friday (March 4), though what exactly it will be doing once it leaves the ground remains a mystery.

The robotic X-37B mini-shuttle is slated to lift off from Cape Canaveral, Fla., on Friday atop an Atlas 5 rocket, weather permitting. Its launch window opens at 3:39 p.m. EST (2039 GMT), according to the launch provider United Launch Alliance, which is overseeing the flight.

This will mark the second space mission for the Air Force’s X-37B space plane program — but the first for this particular plane. It is the second X-37B spacecraft built for the Air Force by Boeing and carries the name Orbital Test Vehicle 2, or OTV-2.

The first X-37B spacecraft launched in April 2010 and returned to Earth in December after an apparently successful test flight, though the details of that mission – like this upcoming flight – are classified. The first X-37B mission lasted 225 days. [Photos: First Flight of the X-37B Space Plane]

Current forecasts for Friday’s X-37B launch try predict a 70 percent chance that bad weather may delay the flight, Air Force official have said.

A small robotic space shuttle

With its blunt nose and stubby wings, the unmanned X-37B spacecraft resembles a miniature version of NASA’s space shuttles. The vehicle was originally developed as part of a NASA project that was shifted to the military when funding ran dry.

The spacecraft is about 29 feet (almost 9 meters) long and 14 feet wide (nearly 4.5 meters), with a payload bay about the size of a pickup truck bed. It is designed to launch vertically inside the nose cone of a rocket, stay in orbit for months at a time, and then land horizontally on a runway like a space shuttle.

But unlike NASA’s shuttles, the X-37B space plane does everything autonomously. It also has a solar array that is deployed from its payload bay to generate power during its months-long stay in orbit [Infographic: The X-37B Space Plane]

“There is no one on the ground with a joystick flying it,” Lt. Col. Troy Giese, X-37B program manager in the Air Force Rapid Capabilities Office, said before the first X-37B mission blasted off last year.

The Air Force Rapid Capabilities Office oversees the X-37B space plane program for the U.S. military.

Secret second test flight

Air Force officials have not said much about first X-37B mission, and they’re been similarly tight-lipped about the upcoming second flight with the OTV-2 vehicle.

But the Air Force has said that the X-37B spacecraft should help the Air Force test and demonstrate new technologies — such as guidance, navigation and control systems — that could be used on future satellites


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