美国防部宣布找到F22战机缺氧问题的根源,飞行解禁

来源:百度文库 编辑:超级军网 时间:2024/04/28 19:27:15
DOD identifies F-22 issues, moves to lift flight restrictions

WASHINGTON — Air Force leaders believe a faulty valve in a flight vest caused several previously unexplained incidents of hypoxia-like symptoms in F-22 Raptor pilots, and Defense Secretary Leon Panetta has approved a plan to gradually remove the restrictions he placed on the planes in May, Pentagon spokesman George Little said Tuesday.

“The Air Force is confident the root cause of the issue is the supply of oxygen delivered to pilots, not the quality of oxygen delivered to pilots,” Little said.

A valve in the vest the pilots wear at high altitude was causing the vest to inflate or deflate at inappropriate times, Little said. The vests, which are required above 44,000 feet to protect pilots in case of an accidental rapid decompression of the cockpit, have been suspended from F-22 flights since June. The valves will all be replaced and the Air Force will brief Panetta on the modifications before the planes return to normal duty, he said.

The Air Force will also increase the volume of air the pilots get by removing a charcoal filter that had been installed to determine whether the air supply was contaminated.

The Air Force grounded the F-22s last May after at least 14 incidents in which pilots experienced symptoms suggesting a lack of oxygen — including headaches, nausea, fatigue and difficulty concentrating. In March, an Air Force advisory panel could not discern the cause of the problem but felt strongly that the oxygen system was safe.

Air Force Chief of Staff Gen. Norton Schwartz said the unprecedented airborne capabilities of the F-22, including its extreme maneuverability at high altitude, caught the Air Force off guard.

“There were aspects of this that, physiologically for the aviator, weren’t well understood,” he said, later adding, “We missed some things, bottom line.”

On May 15, Panetta ordered the Air Force to keep all F-22 close to potential landing strips so they would be able to land quickly if problems arose.

The Air Force is still working on some safety improvements for the supersonic fighter, including a cockpit-mounted oxygen sensor and an improved pilot oxygen sensor, but other changes, such as a better-designed handle to activate the emergency oxygen system, have already been completed.

Schwartz said Tuesday that the precautionary steps, including altitude limits and requirements that F-22s stay remain closer to bases, have “minimized, perhaps not eliminated the risks, until the modifications are in place.”

The process to remove flight restrictions will begin immediately, Little said. A squadron of the supersonic fighters will deploy to Kadena Air Base in Japan “at any moment,” though the planes will be under altitude restrictions and will stay close to land during the trip, Little said.

While some questioned the timing of the deployment – in the midst of Japanese protests over the arrival of MV-22 Ospreys there – Schwartz said the move makes sense.

“There’s an operational requirement, and the birds are ready to go,” he said.

hladj@stripes.osd.mil
Twitter: @jhlad
carrollc@stripes.osd.mil
Twitter: @ChrisCarroll_


http://www.stripes.com/news/dod-identifies-f-22-issues-moves-to-lift-flight-restrictions-1.183876




DOD identifies F-22 issues, moves to lift flight restrictions

WASHINGTON — Air Force leaders believe a faulty valve in a flight vest caused several previously unexplained incidents of hypoxia-like symptoms in F-22 Raptor pilots, and Defense Secretary Leon Panetta has approved a plan to gradually remove the restrictions he placed on the planes in May, Pentagon spokesman George Little said Tuesday.

“The Air Force is confident the root cause of the issue is the supply of oxygen delivered to pilots, not the quality of oxygen delivered to pilots,” Little said.

A valve in the vest the pilots wear at high altitude was causing the vest to inflate or deflate at inappropriate times, Little said. The vests, which are required above 44,000 feet to protect pilots in case of an accidental rapid decompression of the cockpit, have been suspended from F-22 flights since June. The valves will all be replaced and the Air Force will brief Panetta on the modifications before the planes return to normal duty, he said.

The Air Force will also increase the volume of air the pilots get by removing a charcoal filter that had been installed to determine whether the air supply was contaminated.

The Air Force grounded the F-22s last May after at least 14 incidents in which pilots experienced symptoms suggesting a lack of oxygen — including headaches, nausea, fatigue and difficulty concentrating. In March, an Air Force advisory panel could not discern the cause of the problem but felt strongly that the oxygen system was safe.

Air Force Chief of Staff Gen. Norton Schwartz said the unprecedented airborne capabilities of the F-22, including its extreme maneuverability at high altitude, caught the Air Force off guard.

“There were aspects of this that, physiologically for the aviator, weren’t well understood,” he said, later adding, “We missed some things, bottom line.”

On May 15, Panetta ordered the Air Force to keep all F-22 close to potential landing strips so they would be able to land quickly if problems arose.

The Air Force is still working on some safety improvements for the supersonic fighter, including a cockpit-mounted oxygen sensor and an improved pilot oxygen sensor, but other changes, such as a better-designed handle to activate the emergency oxygen system, have already been completed.

Schwartz said Tuesday that the precautionary steps, including altitude limits and requirements that F-22s stay remain closer to bases, have “minimized, perhaps not eliminated the risks, until the modifications are in place.”

The process to remove flight restrictions will begin immediately, Little said. A squadron of the supersonic fighters will deploy to Kadena Air Base in Japan “at any moment,” though the planes will be under altitude restrictions and will stay close to land during the trip, Little said.

While some questioned the timing of the deployment – in the midst of Japanese protests over the arrival of MV-22 Ospreys there – Schwartz said the move makes sense.

“There’s an operational requirement, and the birds are ready to go,” he said.

hladj@stripes.osd.mil
Twitter: @jhlad
carrollc@stripes.osd.mil
Twitter: @ChrisCarroll_


http://www.stripes.com/news/dod-identifies-f-22-issues-moves-to-lift-flight-restrictions-1.183876




可以飞了?重回天下第一宝座。其实天下第一是小李飞刀,第二是他妈的飞刀。
原因是人吧?没人就不会有缺氧问题.最后飞行员背个氧气瓶上飞机,这些问题似乎都解决了.
过几天再掉下一架来玩玩。。。。。。。这次是供氧太多,飞行员太嗨了!

终于摆脱“缺氧机”  的恶名了,  本坛同名归彬也可以松口气了    {:soso_e144:}
求翻译。
the root cause of the issue is the supply of oxygen delivered to pilots, not the quality of oxygen delivered to pilots

老美以前连到底是设备问题还是氧气质量问题都没有搞清楚吗?
方言看不懂。。。。
原来是没给氧气 不是给的气质量有问题

敢情撞地的王师都是憋晕了的
原因就是体质问题吧
  偶一开始就不信是TM缺氧问题!期待再掉……
tao1972 发表于 2012-7-25 12:16
过几天再掉下一架来玩玩。。。。。。。这次是供氧太多,飞行员太嗨了!
那得供神油……
    是找到最近两起事故的原因还是全部的原因?
   http://www.cnstock.com/index/gdbb/201207/2162724.htm
    美空军F-22“猛禽”战斗机供氧系统频出故障
作者:王萍 来源:中国新闻网 2012-07-24 16:45:43     
  中新网7月24日电 据中国国防科技信息网报道,对于美国空军F-22“猛禽”战斗机最新一轮的供氧系统事故而言,既有好消息又有坏消息。坏消息是供应系统故障仍在不时出现,好消息是美国空军称他们已经弄清最近两起事故的原因。

  这两次事故分别发生在6月26日和7月6日,飞行员均报告氧气系统故障。与过去两年来F-22飞行员遭遇缺氧问题不同的是,空军宣称他们已经知道这两起事故的原因。

  空中作战司令部的发言人Tadd Sholtis中校对CNN称空军已经调查完一起事故,并正在调查7月6日的事故,这两起事故都被列在“原因已知”列表中。而在之前问题的调查中,F-22的氧气系统问题则被列在“原因未知”列表内。

  6月26日第1飞行大队的一名飞行员报告了其在着陆前最后进近时感觉到进入面罩的空气受限。在着陆后,他在跑道上使用了紧急供氧系统。调查发现受限情况是由“阀门卡死”造成的,飞行员已经重返飞行。

  7月16日的事故仍在调查中。夏威夷国民警卫队的一名飞行员的告警指示突然指向机载供氧系统(OBOGS),并报告了一次飞行中紧急事件。由于该飞行员收到了OBOGS告警,空军相信OBOGS是造成该问题的原因。

  空军弄清了问题发生的原因,标志着他们朝着正确的方向迈进了一步。但该项目仍在接受详细审查,所有供氧问题都受到国会关注,美国参议员Mark Warner(维吉尼亚州)和共和党人士Adam Kinzinger(伊利诺斯州),已向空军致函询问关于两次事故的更多信息。(中国航空工业发展研究中心 王萍)


MD公开招聘试飞员
个别情况啊,电磁环境复杂,等更多信息。
不是缺氧,是缺心眼
说是飞行衣上供氧阀门有问题.
F-22飞控系统中端预装penthouse、Twistys、suze等一线精品圣物,MD飞飞升空后把持不住,看到兴起之时难免血压上升胸闷气短,然而AV产业已悄然渗透至MD国防工业的每一个角落,把这些预装内容剔除显然是不可能滴~~~~~~~所以嘛~~~~~~~~~~~~
一直觉得娘娘这事是MD掩人耳目之举,背后的真正目的想不透。但可以肯定那个自信自负的MD已经一去不返
ahkusoman 发表于 2012-7-25 12:52
F-22飞控系统中端预装penthouse、Twistys、suze等一线精品圣物,MD飞飞升空后把持不住,看到兴起之时难免血 ...
你直接说打飞机打得太嗨了  直接爽死了不就完了
王师泪都干了,死了连个烈士都得不到,还得背黑锅
估计本来就解掉了。。。

如同战争如果爆发。。。。TG也会把WS-15直接装上J20
难道美帝的灰行员连自己是缺氧头晕还是中毒头晕都分不清楚?木有进行过缺氧训练???
冷思 发表于 2012-7-25 12:18
终于摆脱“缺氧机”  的恶名了,  本坛同名归彬也可以松口气了
这样会被他们举报的,哈哈.
官媒都说解决了要去脚盆国的基地看AV
背着个氧气罐上天不就OK了
怎么办,没法再黑娘娘了啊。

MD会不会说那个vest valve是MIC的?
你直接说打飞机打得太嗨了  直接爽死了不就完了


委婉一点嘛,别那么不解风情。你向女朋友求婚,难道直接就跟对方说让她给你生个孩子?
阀门必须是兔子产的
笑死人啦
MD自己演戏,为了卖35
其实制氧阀之类的配件华强北也是可以找到的。。。米蒂就没从这上面找找原因吗?
恭贺娘娘再次出宫……
来学习的,
F-22秘密升级版搞定放飞了
制空型战斗机说白了就是专业达菲鸡的,飞机打多了头晕说明肾亏。所以,………………………………………………………………
vip-tiger 发表于 2012-7-25 14:14
其实制氧阀之类的配件华强北也是可以找到的。。。米蒂就没从这上面找找原因吗?
据考证
这次GLA找了一个新的更强大的供应商
义乌
找到最近两次的问题,也就刚迈了一小步,离解决问题还很遥远吧?!
{:soso_e120:}又一次找到问题了么

yjh1qa 发表于 2012-7-25 14:10
阀门必须是兔子产的


那是必须地!!!人家那是闽煮国家怎么能造这样专制的阀门呢!!!
yjh1qa 发表于 2012-7-25 14:10
阀门必须是兔子产的


那是必须地!!!人家那是闽煮国家怎么能造这样专制的阀门呢!!!