HUEYROB
Astronaut
In den USA wird seit dem 18.11. eine F-22 "vermisst".
Die Maschine startete auf der Elmendorf AFB zu einem Flug.
Die Maschine startete auf der Elmendorf AFB zu einem Flug.
das wurde hier schon mehr als ausführlich behandelt und die F-22 wird schon lange nicht mehr vermisst denn Wrackteile wurden schon gefunden!hier der Link zu dem Artikel:
http://nachrichten.t-online.de/usa-vermissen-super-kampfflugzeug-ueber-alaska-verschwunden/id_43471814/index
ROB
Nö, die Deutschen haben nur mal wieder gepennt.Die Air Force ist nicht zu toppen.
Die finden die Absturzstelle einer seit dem 18.11 vermißten Maschine schon am 17.11.
Wozu die Deutschen ja wohl ein gutes Recht haben ; wenn die F22 in Alaska zu einem Nachtflug (17.11. 07:40 pm ^= 19:40 local) startet ist es bei uns schon der 18.11. früh morgens !Nö, die Deutschen haben nur mal wieder gepennt.
Vollständiger Text bei defensenews.comAircraft Oxygen-Generating Systems Under Investigation
The U.S. Air Force is investigating whether the On-Board Oxygen Generating System (OBOGS) found on several U.S. Air Force warplanes, including the F-22 Raptor, might be defective.
"Air Force operational commanders have temporarily restricted F-22 flight operations to an altitude at or below 25,000 feet for routine training missions," said Col. William Nichols, a spokesman for the command, which is responsible for training and equipping the service's combat air forces.
"Air Combat Command is conducting an investigation to assess on-board oxygen generating systems on several platforms, including the F-22," Nichols said. "The investigation is designed for mishap prevention and is a prudent measure to ensure the OBOGS are operating safely.
"When the investigation is completed, the results will be reviewed and appropriate actions, if warranted, will be taken," he said.
A Lockheed Martin spokesman confirmed that the restriction has been in place ever since an F-22 based at Elmendorf Air Force Base, Alaska, crashed in November. Lockheed is the prime contractor for the F-22, a next-generation stealth fighter jet.
One Air Force source said that an OBOGS malfunction might have been responsible for the incident, which resulted in the death of Capt. Jeffery Haney, an F-22 pilot assigned to the 525th Fighter Squadron.
Despite the restrictions, the Raptor remains fully operational and could carry out combat tasks if needed, he said.
"A standard safety practice with all aircraft is, if there is a known or suspected problem, you take measures to fix it," said Mark Gunzinger, an analyst at the Center for Strategic and Budgetary Assessments, Washington, and a former Air Force pilot. "It's not something you want to do, but these things happen with complex aircraft."
While the stealth fighter might be restricted in training operations, that does not mean the Raptor would be restricted during wartime missions, Gunzinger said.
"If it's a war, if it's truly a safety-of-flight issue and it's going to hurt pilots and it's going to prevent the mission from being accomplished, then obviously the restriction will stand," he said. "But if it's something of a temporary nature or there is a work-around in time of war, it may not impact combat operations."
An OBOGS malfunction can be potentially life-threatening, said Hans Weber, who sat on the U.S. Federal Aviation Administration's Research, Engineering and Development Advisory Committee, and is the current president of Tecop International, a San Diego consulting firm.
"It's a big deal if you're at high altitude and you run out of oxygen," Weber said.
At 50,000 feet, a human being has less than 10 seconds of useful consciousness, he said. The 25,000-foot altitude restriction would allow the pilot to quickly dive below 18,000 feet, where the atmosphere has enough oxygen to ensure prolonged survival in case of an emergency.