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Secret US Spaceplane Returns to Earth After Record Flight

OTV-4 landed at the Kennedy Space Center in Florida after spending 718 days in orbit(Credit: US Air Force)

OTV-4 landed at the Kennedy Space Center in Florida after spending 718 days in orbit(Credit: US Air Force)

 reports: The US Air Force’s not-so-secret secret spaceplane, the X-37B, set a new orbital endurance record for a reusable unmanned spacecraft as it set down today at the Kennedy Space Center in Florida. Orbital Test Vehicle mission 4 (OTV-4) came to an end at about 8:00 AM EDT as the aircraft made an autonomous touchdown on the runway of the Shuttle Landing Facility after spending 718 days in orbit.

The X-37B is used by the Air Force for studies in spaceflight risk reduction, orbital experiments, and operations development for reusable space vehicles.

otv-four-2.JPG

The fourth of the X-37B missions, OTV-4 lifted off from Cape Canaveral Air Force Station, Florida on May 20, 2015 atop an Atlas V rocket. The mini-shuttle was tasked with testing the Aerojet Rocketdyne XR-5A Hall-effect thruster as part of the Advanced Extremely High Frequency communications satellite program, as well as carrying out prolonged material tests for NASA.

Today’s landing after 718 days brings the total for OTV missions to 2,085 flight-days. The previous record was set by OTV-3. This was the first X-37B landing in Florida … (read more)

via newatlas.com

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