NASA X-37B Space Drone OTV-2 Returns to Earth Safely

The USAF X-37B designated Orbital Test Vehicle (OTV)-2 returned to Earth on Saturday, June 16th after 468 days 13 hours and 2 minutes on a voyage that orbited the Earth more than 7,000 times performing a classified mission.

OTV-2 received the command from its ground controller to return and initiated an autonomous firing sequence of its propulsion system to brake from its orbit and dive through the atmosphere for a reentry over the Pacific Ocean.

OTV-2 executed a series of turns similar to those performed by the Space Shuttle to dissipate speed as it navigated autonomously via GPS towards Vandenberg AFB in California. OTV-2 touched down on the 3-mile (4.8 kilometer) long runway at Vandenberg 5:48 a.m. local (8:48 a.m. EDT; 1248 GMT).

OTV-2′s flight and that of its sister ship OTV-1, is classified and will likely remain so.

It is that secrecy that has spawned speculation about the purpose of the both spacecraft ranging from a test-bed for new sensors and materials to being a prototype for a new generation of space weapons.

The U.S. Air Force maintains that both spacecraft are designed as test-beds for new technologies; however, the classified nature of the project will ensure that speculation will continue.

X-47B Drone: Unmanned aircraft completes first major flight-test

The Northrop Grumman-built X-47B has passed the latest checkpoint on its flight path towards becoming the first carrier-based, tailless, fighter-sized, unmanned aircraft in the U.S. Navy’s arsenal with the successful conclusion of the first major phase of flight testing at Edwards Air Force Base (EAFB) in California.

The airworthiness test phase, which kicked off with the maiden flight on February 4, 2011, saw two X-47B Unmanned Combat Air System (UCAS) demonstrators conduct 23 flights in which the aircraft reached altitudes in excess of 15,000 feet and demonstrated multiple maneuvers required for carrier operations.

These included the first flight in cruise mode, extending and retracting a tail hook, completing an aviation-first autonomous “touch-and-go” landing, and landings at a high sink rate and in heavy weight configuration.

Northrop Grumman says the flight tests proved the aircraft’s ability to perform properly at all speeds, weights and altitudes associated with the Navy’s Unmanned Combat Air System Carrier Demonstration (UCAS-D) program.

"The X-47B flight test program at Edwards will be remembered as a very successful collaboration among the Navy, Northrop Grumman and the U.S. Air Force Flight Test Center," said Carl Johnson, vice president and Navy UCAS Enterprise program manager for Northrop Grumman's Aerospace Systems sector.

"The X-47B flight test program at Edwards demonstrated convincingly the maturity, durability and performance of this revolutionary new unmanned system.”

Following the completion of the airworthiness flight tests at EAFB on May 15, the second X-47B has been transported cross-country to Naval Air Station Patuxent River in Maryland.

It joins the first X-47B that was moved there in December 2011 and is currently undergoing electromagnetic interference testing to ensure it is compatible with the electromagnetic signal environment experienced on an aircraft carrier.