X-47B flyby

X-47B at the catapult

Getting up a head of steam

Ground crew stands by

It's a bird. No, it's an X-47B

In for a landing

Remote-control test

X-47B Control Display Unit

Yellow shirt

Hoisted onto the flight deck

A landing of a different sort

On the flight deck

View from above

On the elevator

Takes directions well

Fair weather

In the hangar bay

Catapult launch

And away it goes

The landing approach

Hooked!

Flying high

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An X-47B Unmanned Combat Air System demonstrator flies over the aircraft carrier USS George H.W. Bush. On May 14, 2013, one of the U.S. Navy's two X-47B aircraft did what no unmanned aircraft has ever done before -- made a catapult launch from the flight deck of an aircraft carrier.

After taking off from the Bush, the Navy said, the X-47B made several planned low approaches to the carrier (under the control of an operator aboard the ship) off the coast of Virginia and then flew across Chesapeake Bay to land at Naval Air Station Patuxent River, Md., after an approximately 65-minute flight.

But the X-47B wasn't done carving out notches in naval history. Two months later, on July 10, 2013, it made its first arrested landing, no easy feat, also on the Bush -- that is, like piloted planes that land on a carrier, it used a hook on the underside of its fuselage to catch a cable stretched across the flight deck.

In the slideshow that follows, we'll take you through some of the steps that got the X-47B to its historic accomplishments in the spring and summer of 2013.

Editors' note: This slideshow was first published on December 1, 2012. It was updated later in December with photos of the X-47B on the flight deck of the USS Harry S. Truman at sea, and then again on May 14, 2013, with photos from the X-47B's flight from the USS George H.W. Bush. It was subsequently updated on July 11, 2013, with details of its arrested landings on the carrier.

Caption by Jon Skillings / Photo by U.S. Navy photo courtesy of Northrop Grumman by Alan Radecki

An X-47B demonstrator gets ready on November 29, 2012, for an on-land take-off from a catapult -- the same sort of system that launched it from the carrier George H.W. Bush and into the history books.

Caption by Jon Skillings / Photo by Northrop Grumman

Before it got to the carrier test, the experimental X-47B had to prove itself in a trial run from dry land at the Naval Air Station Patuxent River in Maryland -- its first-ever catapult launch, period.

Caption by Jon Skillings / Photo by U.S. Navy

The launch on November 29 was a success, according to the Navy and Northrop Grumman, the builder of the unmanned aircraft. "This test, in addition to the extensive modeling and simulation done prior to today, gives us great confidence in the X-47B's ability to operate on the flight deck," said Capt. Jaime Engdahl, the Navy UCAS program manager.

Caption by Jon Skillings / Photo by U.S. Navy

This shot of the sleek, birdlike X-47B in flight is from earlier in its test career, from September 2011 over Edwards Air Force Base in California.

Caption by Jon Skillings / Photo by Northrop Grumman

An X-47B (there are two of them in total) lands at the Pax River base in July 2012.

Caption by Jon Skillings / Photo by U.S. Navy

The X-47B during remote-control tests that took place earlier in November. The deck operator (left) uses the Control Display Unit to move the aircraft into the proper position, working in conjunction with a flight deck director -- whose hand signals will be for the benefit of everyone else in the carrier's flight operations.

Caption by Jon Skillings / Photo by Northrop Grumman

Here's a closer look at the X-47B Control Display Unit in action. "Instead of towing the aircraft out to the flight line, we can now start the X-47B outside its hangar, then use the CDU to taxi it out to the runway, or into a catapult for launch," Daryl Martis, Northrop Grumman's UCAS-D test director, said in a statement.

Caption by Jon Skillings / Photo by Northrop Grumman

The flight deck director is also known as the "yellow shirt," for reasons that are readily apparent.

Caption by Jon Skillings / Photo by Northrop Grumman

Also in November, one of the X-47B aircraft paid a visit to an actual flight deck, settling in aboard the U.S.S. Harry S. Truman (CVN 75).

Caption by Jon Skillings / Photo by U.S. Navy

When it arrived on the Truman, the X-47B was just a few weeks from starting its first sea trials.

Caption by Jon Skillings / Photo by U.S. Navy

As of December 9, the X-47B had been conducting taxi tests on the flight deck of the U.S.S. Harry S. Truman. In the background is a C-2A Greyhound cargo aircraft.

Caption by Jon Skillings / Photo by U.S. Navy photo by Mass Communication Specialist 2nd Class David R. Finley Jr.

The X-47B looks quite moth-like when seen from on high.

Caption by Jon Skillings / Photo by U.S. Navy photo by Mass Communication Specialist 3rd Class Kristina Young

The X-47B rides an aircraft carrier elevator.

Caption by Jon Skillings / Photo by Northrop Grumman

Sea trials in December 2012 were a success, according to the Navy and Northrop Grumman. "We proved that the X-47B air system is mature and can perform flawlessly in the most hostile electromagnetic environment on earth, a Nimitz class Navy aircraft carrier," said Mike Mackey, UCAS-D program director for Northrop Grumman Aerospace Systems, in a statement on December 19.

Caption by Jon Skillings / Photo by Northrop Grumman

The X-47B on the flight deck of the USS Harry S. Truman in December 2012.

Caption by Jon Skillings / Photo by Northrop Grumman

Now we see the X-47B aboard the carrier USS George H.W. Bush (CVN 77) just ahead of its May 2013 flight. It's being towed into the carrier's hangar bay.

Caption by Jon Skillings / Photo by U.S. Navy photo

The X-47B makes its catapult launch from USS George H.W. Bush May 14, 2013.

Caption by Jon Skillings / Photo by U.S. Navy photo courtesy of Northrop Grumman by Alan Radecki

Catapulted from the flight deck in May 2013, the X-47B feels the wind under its wings.

Caption by Jon Skillings / Photo by U.S. Navy photo by Mass Communication Specialist 2nd Class Tony D. Curtis

On July 10, 2013, the X-47B had another big moment -- it made two arrested landings on the aircraft carrier USS George H.W. Bush after having made a 35-minute flight from the Patuxent River Naval Air Station in Maryland. After each landing, the aircraft followed up with a new catapult launch. It would have made a third landing, but on that approach, the Navy said, the X-47B aircraft "self-detected a navigation computer anomaly" and headed to a designated alternative landing site on land at Wallops Island Airfield in Virginia.

Caption by Jon Skillings / Photo by U.S. Navy photo by MC3 Kevin J. Steinberg

This is one of the two arrested landings on July 10, 2013. Note the landing wire stretching out behind the aircraft's tail end.

Caption by Jon Skillings / Photo by U.S. Navy photo by Mass Communication Specialist Seaman Lorelei R. Vander Griend

The X-47B flies high against the backdrop of the Atlantic Ocean and the aircraft carrier USS George H.W. Bush.

Caption by Jon Skillings / Photo by U.S. Navy photo by Erik Hildebrandt

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