The Enid News and Eagle, Enid, OK

National and world

July 11, 2013

Navy completes 1st unmanned carrier landing

(Continued)

ABOARD THE USS GEORGE H.W. BUSH — The X-47B is far bigger than the Predator, has three times the range and can be programmed to carry out missions with no human intervention, the Navy said.

While the X-47B isn't a stealth aircraft, it was designed with the low profile of one. That will help in the development of future stealth drones, which would be valuable as the military changes its focus from the Middle East to the Pacific, where a number of countries' air defenses are a lot stronger than Afghanistan's.

The X-47B has a wingspan of about 62 feet and weighs 14,000 pounds, versus nearly 49 feet and about 1,100 pounds for the Predator.

While Predators are typically piloted via remote control by someone in the U.S., the X-47B relies only on computer programs to tell it where to fly unless a human operator needs to step in. The Navy says the aircraft relies on precision GPS navigation, a high-integrity network connection and advanced flight control software to guide itself.

Chief of Naval Operations Adm. Jonathan Greenert called the first landing a "miraculous technological feat."

Developed by Northrop Grumman under a 2007 contract at a cost of $1.4 billion, the X-47B is capable of carrying weapons and is designed to be the forerunner for a drone program that will provide around-the-clock intelligence, surveillance and targeting, according to the Navy, which has been giving updates on the project over the past few years.

The X-47B can reach an altitude of more than 40,000 feet and has a range of more than 2,100 nautical miles, versus 675 for the Predator. The Navy plans to show the drone can be refueled in flight, which would give it even greater range.

"It gives us persistence. It gives us the ability to do things that we can't today because of the limitations on the human body in terms of endurance, in terms of distance, in terms of just how long you can stay on station or do the things like refueling," Mabus said. "We're not sending this message to any particular country. This is for us. This is to make sure that we keep the technological edge."

 

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