X-47B aborted third landing attempt

2013-07-15

X-47B aborted third landing attempt

As every good seaman knows, a salty dog is an experienced sailor savvy enough to do the right thing when confronted with a problem. That’s exactly what the Navy’s X-47B unmanned aircraft — with the call sign “Salty Dog” — did when an onboard computer failed as the drone attempted its third arrested landing on theUSS George H.W. Bushaircraft carrier off the coast of Virginia yesterday.

The X-47B already had completed two landings, including the historicfirst carrier landing of an unmanned aircrafton a flight from Naval Air Station Patuxent River.

The second landing followed less than an hour later after a launch from one of the carrier’s catapults. After a second catapult launch, the drone zoomed around for yet another landing. That’s when one of three redundant onboard computers failed, four miles from the carrier deck, as the aircraft approached for its third landing.

In a briefing for reporters Thursday, Rear Adm. Mat Winter, program executive officer for Unmanned Aviation and Strike Weapons, said the aircraft’s computers constantly poll each other’s health. When two computers detected the failure of the third, the aircraft executed an “autonomous wave off” — it pulled up and awaited instructions from an onboard, human mission control operator.

Due to safety considerations, flight testers decided to forego the third carrier landing and directed the X-47B to land at NASA’s flight facility at Wallops Island, which was closer to the carrier than the Navy’s Patuxent River facility. Winter said the failure of the computer wasn’t a big deal in a test program. “As in every test, we have some anomalous behavior,” he said.

http://www.nextgov.com/defense/2013/07/unmanned-aircraft-aborted-its-third-carrier-landing-attempt-following-computer-failure/66488/

source: suasnews.com



Region:  USA and Canada
Contry:  USA
Category:  UAV
Company:  Northrop Grumman


Northrop Grumman Navigation System in nEUROn Test Flights

2016-03-09
Northrop Grumman Navigation System in nEUROn Test Flights
Northrop Grumman Corporation in cooperation with Saab Aerosystems, has provided the Attitude and Heading Reference System (AHRS) for the nEUROn unmanned combat air vehicle (UCAV) demonstrator, which recently conducted more than 100 test flights in France, Italy and Sweden.

NG sponsors 2014 UAV Outback Challenge

2014-04-02
NG sponsors 2014 UAV Outback Challenge

Northrop Grumman has announced it will sponsor the 2014 Unmanned Aerial Vehicle Outback Challenge competition.

Australia should boost stocks in drone aircraft, military lobby group says

2014-02-25
Australia should boost stocks in drone aircraft, military lobby group says

AN influential air power lobby group wants Australia to acquire long-range unmanned combat aircraft that can fire precision missiles against targets without risk to pilots.

Northrop Grumman's Hunter Unmanned Aircraft System Surpasses 100,000 Combat Flight Hours

2014-01-28
Northrop Grumman's Hunter Unmanned Aircraft System Surpasses 100,000 Combat Flight Hours

Unmanned Aircraft System (UAS), in use with the U.S. Army since 1996, recently surpassed 100,000 combat flight hours in service.

Predator: More Unmanned Electronic Attack Capabilities

2014-01-23
Predator: More Unmanned Electronic Attack Capabilities

General Atomics Aeronautical Systems (GA ASI) and Northrop Grumman demonstrated the Predator B/MQ-9 Reaper Unmanned Aircraft System's (UAS) electronic attack capability during a U.S. Marine Corps' Weapons and Tactics Instructor (WTI) course.

Northrop Grumman Wins MQ-4C Triton UAV Contract

2013-08-22
Northrop Grumman Wins MQ-4C Triton UAV Contract
The U.S. Department of Defense announced a dozen contract awards Wednesday — worth $541.2 million in combined value.

Northrop Seeks to Rent Out Small Training UAV

2013-08-15
Northrop Seeks to Rent Out Small Training UAV
Northrop Grummanhas offered theU.S. Air ForceandCustoms and Border Protectiona new unmanned training aircraft under a structure that aims to help the government save $70 million in annual maintenance and procurement expenses

Fire Scout surpasses flight hour record aboard USS Samuel B. Roberts

2013-08-08
Fire Scout surpasses flight hour record aboard USS Samuel B. Roberts
MEDITERRANEAN SEA —Helicopter Strike Maritime Squadron (HSM) 46, Det. 9 recently surpassed the MQ-8B Fire Scout’s previous monthly flight hour record while performing operations at sea aboard USS Samuel B. Roberts (FFG 58).

X-47B carrier landing video

2013-07-11
X-47B carrier landing video
The X-47B Unmanned Combat Air System (UCAS) demonstrator completed its first carrier-based arrested landing on board USS George H.W. Bush (CVN 77) off the coast of Virginia July 10.

Northrop Grumman, GF sign agreement promoting UAS

2013-05-31
Northrop Grumman, GF sign agreement promoting UAS
GRAND FORKS, N.D. — Representatives of government, academic and private organizations signed a “strategic alliance agreement” Thursday to further promote unmanned aircraft systems (UAS) in the Grand Forks region.


Back to the list