CD没人关注F-22停飞原因的调查么？ 消息出来很久了

一阵子没来超大，刚才翻了几页，好像没人注意F-22停飞的调查结果，  这个消息出来一阵子了，估计应该就是这个原因了，

http://www.defensenews.com/story.php?i=7149120

Sources: USAF Suspects Carbon Monoxide in F-22 Grounding

An investigation that has grounded the Air Force's F-22 Raptor fighter jet fleet since May has brought a possible culprit to light. The Air Force Times reports that carbon monoxide entering the jet pilots' oxygen supplies may be to blame for several cases of "hypoxia-like symptoms" in the pilots. One incident that led to the May 3 grounding of the fleet was the Nov. 16 crash near Cantwell that killed the F-22's pilot, Capt. Jeffrey Haney, although it is still unclear if that crash was caused by carbon monoxide. According the Air Force Times, the majority of the 14 reported incidents have taken place in Alaska, and the likely culprit now appears to be carbon monoxide that resulted from starting the twin-engine jets inside the hangars during cold temperatures, which then mixes in with the pilot's On-Board Oxygen Generation System (OBOGS).

From the Air Force Times:

Part of the problem may be the procedures used at Elmendorf Air Force Base, Alaska, where most of the known incidents have occurred. Because of the harsh climate, pilots often start their jet engines inside a hangar before taking off. Investigators suspect that exhaust gases are getting trapped in the building and subsequently sucked back into the engines, where they enter the bleed air intakes that supply the OBOGS, sources said.

The new report alleviates some blame from the OBOGS itself -- a problem with which had been considered a possible cause -- and does suggest that there may be a simple procedural fix, although further filtration modifications to oxygen systems may also be necessary. The investigation is still ongoing, and the grounding of the fleet continues. Read much more, including about similar problems in the F/A-18 Hornet, at the Air Force Times.

简单翻译就是说根据对多起飞行员缺氧症状事件的过程的还原，发现的共同点将问题的原因指向了飞机操作程序而非F-22的机载制氧系统(OBOGS)设备本身。
      也就是说，在阿拉斯加州埃尔门多夫空军基地，因为天气恶劣，很多时候都是飞机还在机库里时就打开了发动机，造成了部分一氧化碳进入了OBOGS， 这些一氧化碳虽然表面上没有造成飞行员的明显不适，但仍然干扰了飞行员的一些感知能力。
     类似的事情在海军也有发生，排队等待起飞的航母的大黄蜂机队，排在后面的F18会吸入前面飞机引擎尾气中的一氧化碳，从而造成类似问题。
一阵子没来超大，刚才翻了几页，好像没人注意F-22停飞的调查结果，  这个消息出来一阵子了，估计应该就是这个原因了，

http://www.defensenews.com/story.php?i=7149120

Sources: USAF Suspects Carbon Monoxide in F-22 Grounding

An investigation that has grounded the Air Force's F-22 Raptor fighter jet fleet since May has brought a possible culprit to light. The Air Force Times reports that carbon monoxide entering the jet pilots' oxygen supplies may be to blame for several cases of "hypoxia-like symptoms" in the pilots. One incident that led to the May 3 grounding of the fleet was the Nov. 16 crash near Cantwell that killed the F-22's pilot, Capt. Jeffrey Haney, although it is still unclear if that crash was caused by carbon monoxide. According the Air Force Times, the majority of the 14 reported incidents have taken place in Alaska, and the likely culprit now appears to be carbon monoxide that resulted from starting the twin-engine jets inside the hangars during cold temperatures, which then mixes in with the pilot's On-Board Oxygen Generation System (OBOGS).

From the Air Force Times:

Part of the problem may be the procedures used at Elmendorf Air Force Base, Alaska, where most of the known incidents have occurred. Because of the harsh climate, pilots often start their jet engines inside a hangar before taking off. Investigators suspect that exhaust gases are getting trapped in the building and subsequently sucked back into the engines, where they enter the bleed air intakes that supply the OBOGS, sources said.

The new report alleviates some blame from the OBOGS itself -- a problem with which had been considered a possible cause -- and does suggest that there may be a simple procedural fix, although further filtration modifications to oxygen systems may also be necessary. The investigation is still ongoing, and the grounding of the fleet continues. Read much more, including about similar problems in the F/A-18 Hornet, at the Air Force Times.

简单翻译就是说根据对多起飞行员缺氧症状事件的过程的还原，发现的共同点将问题的原因指向了飞机操作程序而非F-22的机载制氧系统(OBOGS)设备本身。
      也就是说，在阿拉斯加州埃尔门多夫空军基地，因为天气恶劣，很多时候都是飞机还在机库里时就打开了发动机，造成了部分一氧化碳进入了OBOGS， 这些一氧化碳虽然表面上没有造成飞行员的明显不适，但仍然干扰了飞行员的一些感知能力。
     类似的事情在海军也有发生，排队等待起飞的航母的大黄蜂机队，排在后面的F18会吸入前面飞机引擎尾气中的一氧化碳，从而造成类似问题。