Defense

April 5, 2013

F-22 resumes normal flight operations

Air Force Reserve photograph by TSgt. Dana Rosso Air Force Reserve photograph by TSgt. Dana Rosso
The F-22 Raptor has resumed normal flight operations after modifications to aircrew life-support equipment were completed across the fleet, including the upper pressure garment and related hoses, valves and connectors.

Completion of this task eliminates the need to restrict flight operations to remain within a 30-minute flying distance from an airfield suitable for landing.

F-22 crews have also resumed their aerospace control alert mission in Alaska after the Automatic Back-up Oxygen System was installed in aircraft based at Joint Base Elmendorf-Richardson, Alaska. Altitude restrictions have also been incrementally removed for F-22s that have received the ABOS modification. Altitude restrictions for training flights remain for non-ABOS equipped F-22 aircraft; however, those restrictions will be removed as each aircraft is modified.

The return to normal flight operations hinged on completing eight near-term actions identified by the Air Force Scientific Advisory Board, successful fielding of the modified Combat Edge upper pressure garment valve and fielding of the automatic backup oxygen system. All actions identified by the SAB were completed in December 2012. Fielding of the modified Combat Edge upper pressure garment valve and related pieces was completed in January.

The fielding of the ABOS provides additional protection to F-22 pilots while flying at high altitudes and in the most demanding oxygen-delivery scenarios. The first combat aircraft was modified in January at Nellis AFB, Nev. Elmendorf-assigned Raptors began modifications in February and officials expect combat fleet completion by July 2014.

In May 2011, Air Force officials stood-down the F-22 fleet for four months. This operational pause enabled the Air Force to accelerate efforts to study, define and fix the cause of the reported incidents. After the SAB completed its investigative actions in January 2012, the F-22 Life Support Systems Task Force formed a multiservice, multiagency team of government, industry and academic experts to review previous recommendations and findings. This increased breadth of experience, enhanced scope of knowledge, and additional impartial expert analysis led to the conclusion that a lack of oxygen quantity was causing the physiological incidents. The task force also determined the quality of oxygen was not causing the physiological symptoms reported by F-22 pilots and ground crew.

F-22 aircrews have flown more than 22,270 sorties and more than 27,500 hours since the last previously unexplained incident in March 2012.

Air Force officials will continue to leverage lessons learned throughout the F-22 investigative process and will invest in characterizing and better understanding the high-performance aircraft environment to improve pilot safety and performance in the F-22 and in all current and future weapon systems.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines July 28, 2014

News: U.S. has lost track of weapons given to Afghanistan - The United States supplied almost three quarter of a million weapons to Afghanistan’s army and police since 2004, but the military cannot track where many of those arms have gone, a new report found. Bill to improve VA has $17 billion price tag - A bipartisan...
 
 

News Briefs July 28, 2014

Marines seek authorization for dolphin deaths The Marine Corps is asking for a five-year authorization from the National Marine Fisheries Service for incidental deaths of bottlenose dolphins during training exercises at a bombing and target range. The Sun Journal of New Bern, N.C., reports that Connie Barclay of the National Oceanic and Atmospheric Administration says...
 
 
Army photograph by David Vergun

Senior leaders explain Army’s drawdown plan

Army photograph by David Vergun No commander is happy when notified that a soldier from his or her command has been identified for early separation. But commanders personally notify those Soldiers and ensure participation in th...
 

 

Northrop Grumman awarded mission support services contract

The U.S. Army awarded Northrop Grumman a cost-plus-fixed-fee contract, with a potential value of $205 million, to continue providing mission logistics services in support of combat brigades training at the National Training Center in Fort Irwin, Calif. The contract covers one base year and two one-year options. Support will include the full range of mission...
 
 
Lockheed Martin photograph by Beth Groom

F-35 Rollout Marks U.S.-Australia Partnership Milestone

Lockheed Martin photograph by Beth Groom Royal Australian Air Force Air Marshal Geoff Brown delivers his remarks at the roll out ceremony for Australia’s first F-35. The official rollout of the first two F-35 Lightning II...
 
 
NASA/JPL-Caltech image

NASA’s Mars spacecraft maneuvers to prepare for close comet flyby

NASA/JPL-Caltech image This graphic depicts the orbit of comet C/2013 A1 Siding Spring as it swings around the sun in 2014. On Oct. 19, the comet will have a very close pass at Mars. Its nucleus will miss Mars by about 82,000 m...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>