re: Official Thread: Missing Malaysia Airlines Flight 370

Fariq is a "good boy, a good Muslim, humble and quiet," said Ahmad Sarafi Ali Asrah, the head of a community mosque about 100 meters (yards) from Fariq's two-story home in a middle-class neighborhood on the outskirts of Kuala Lumpur.


Yep, all I needed to know

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IIRC, the passenger oxygen lasts 12 minutes or so, enough to descend to a safe altitude. Plus you have to stay in your seat. The flight attendants have portable breathing gear that lasts longer, but that reduces the # of people a hijacker would have to deal with by more than 90%, and most or all of them would be females. The other question is whether the cabin crew has access to emergency communication devices or some sort.

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I thought just heard a pilot on CNN who says that the Cockpit can control cabin air pressure manually as well? Is this true?

Anyone know whether the pilot can just turn some switch, reduce oxygen & cause or contribute hypoxia to the passengers in the cabin (disable them)?


I'm still stuck on cabin depressurization/hypoxia .

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My thought is that this pilot took his sim to real life. Pushed the limit in his sim and wanted to see if be could do it in real life. Became delusional

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My money is on the pilot being in on it, I know a lot of older commercial pilots virtually zero have any interest in playing Flight Sim as a hobby. This pilot had some alternate mission planned, and used flight sim to practice the mission. If all he wanted to do was commit suicide, he could have crashed right after take off. Now my question is what was his mission?

What about using the plane several months later loaded with dirty nuclear material headed for a major city in range. Once the hype of this news story goes away, terrorists hit a major city with a dirty nuke.

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What about using the plane several months later loaded with dirty nuclear material headed for a major city in range. Once the hype of this news story goes away, terrorists hit a major city with a dirty nuke.

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The only problem is how would they enter our airspace without getting an F-16 dick in their arse?

But if they have a way then that's my next guess.

Lt Colonel Jessup one made a flight disappear from Gitmo to Quantico. This isn't aliens.

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That's what I posted about on the last page. The pilots can manually "climb the cabin" enough to put everybody to sleep - most probably already were because of time of night. Then, if they depressurize the cabin further, nobody can react anyway.

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Okay.

What I meant was can the cockpit simply increase/decrease oxygen through some system on the plane. Some switch or control without rapid ascension ?

So only through rapid ascension can that be done?

I have been stuck on hypoxia early on.

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I don't know. Someone just posted that a relative of the copilot said he was a good Muslim boy from Kuala Lumpur. Good Muslim boys don't do those kinds of things.

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If they want their virgins they do.

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Anyone know whether the pilot can just turn some switch, reduce oxygen & cause or contribute hypoxia to the passengers in the cabin (disable them)?


I'm still stuck on cabin depressurization/hypoxia .

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If the plane ascended to ~45,000 feet for an extended period of time, it may not have mattered if the oxygen masks were operating properly.

The ambient pressure at sea level is approximately 760 mmHG. We know that 21% of this air is composed of oxygen. Thus, the partial pressure of oxygen at sea level is (.21)(760) = 160 mmHG. The arterial pressure of oxygen in the lungs is about 95 mmHG, and this generally corresponds to the amount of oxygen molecules that bind to hemoglobin molecules. A fall in PaO2 means a decrease in the amount of oxygen molecules dissolved in the plasma, which means fewer oxygen molecules will be able to bind to hemoglobin. This results in reduced amounts of oxygen delivered to the tissues. A PaO2 below 60 mmHG is a serious medical issue.

If the ambient pressure drops from the normative value of 760 mmHG, to, say, 400 mmHG, 21% of the air is still composed of oxygen. Resultantly, the PaO2 will decline as well. This can be corrected by pressurizing the ambient air, which is what takes place on airliners at 35,000 feet.

However, if you're in a situation where you can't pressurize the ambient environment (such as on a malfunctioning jet at cruising altitude), you need to compensate for the decreased PaO2 in some other fashion. This is done by breathing in oxygen through a mask. Thus, instead of breathing in air that is composed of 21% oxygen, you're essentially breathing in 100% O2 to compensate for the fall in PaO2.

At over 40,000 feet, however, the ambient pressure is 150 mmHG or lower. Even if you can breathe 100% oxygen through at mask, it's still not sufficient to compensate for the low PaO2. This is when certain symptoms start to set in secondary to hypoxia. To remedy this, the plane would need to drop in altitude to allow for the ambient pressure in the plane to rise, thereby increasing the PaO2 to adequate levels.