• Air Asia flight QZ 8501 'missing'
    165 replies, posted
[QUOTE=loopoo;46821543]I wish we were at the stage in evolution where we could come up with a mode of transportation that never suffered any potential disasters. Elon Musk's hyperloop, for example.[/QUOTE] dude i can't even walk across the room without 4 potential disasters so I think it's going to take awhile
Oh man, heartbreaking [url]https://twitter.com/YahooSG/status/549924696267845634[/url]
[QUOTE=angelangel;46821471]Seems like every other episode of Air Crash Investigation has to do with pitot tubes, you'd think by now they would have engineered a better system or multiple backups...[/QUOTE] Yeah, redundant airspeed data sources have been included in modern airliners since like pre-2000. It's crazy how many recent accidents (past 10 years) have been attributed to loss of pitot tube.
[QUOTE=runtime;46821075]Lots of different factors to consider so far. Low airspeed at or around 320kts ground speed isn't that uncommon - an airliner will not stall until ~200kts fully laden. That's a good buffer. Considering they were approaching severe weather and they should have been thinking about diverting their route, it makes sense to me that they would decrease their airspeed to give them thinking time. You don't continue at cruise speed when you are considering a detour - you would give yourself all the time you can to plan, coordinate and execute that change. Pitot tubes freezing up are definitely a possibility - someone previously in the thread mentioned the Air France crash. Modern airliners do have backups for reading speed though - namely GPS and other navigational aids. If the pitot tubes were frozen and the GPS not operable - both knocked out due to adverse weather - then that there is a scenario where airspeed would be very difficult to judge at cruise. But even then there are gyros which are independent of GPS and external sensors such as the pitots, that could give you a very rough and ready reading of speed. All airliners have these multiple inputs that are isolated from each other, so if any one source of data fails there are backups. At this stage all these different buts and ifs will make for a very difficult challenge for the air accident investigators. Very sad to hear that bodies have been found. I was really hoping we wouldn't have that this time. Anyone really interested in this, reddit has a great live feed - [url]http://www.reddit.com/live/u5bmnl5imzk4[/url][/QUOTE] They were at a higher altitude (FL360?) wouldn't this adversely select stall speed, raising it severely? I bet it was pitot freeze, higher altitude resulted in decreased handling abilities making it even easier to lose control and perspective
[URL="http://edition.cnn.com/2014/12/30/world/asia/airasia-missing-plane/index.html?sr=fb123014planefound11pVODtopphoto"]The plane's wreckage has been found on the sea floor.[/URL] [QUOTE](CNN) -- [Breaking news update 10:55 p.m. ET] Indonesian searchers using sonar equipment have located wreckage from AirAsia Flight QZ8501 at the bottom of the Java Sea, a search and rescue official told CNN on Wednesday. At the moment, they still don't know if it's in one piece or broken up, said the official, Hernato, who goes by one name.[/QUOTE]
[QUOTE=Fusnax;46821662]Oh man, heartbreaking [url]https://twitter.com/YahooSG/status/549924696267845634[/url][/QUOTE] so they must have been alive when they reached the water... i only hope they died instantly.
One of the bodies recovered today was wearing a life jacket. [url]http://www.reuters.com/article/2014/12/31/us-indonesia-airplane-jacket-idUSKBN0K90A920141231[/url]
Perhaps the landing was hard enough to simply kill everybody instantly but not hard enough to shatter the plane. It might be quite intact down there.
[QUOTE=proch;46814942]There's a difference between a crash and a [I]plane[/I] just disappearing and never being found. Twice in the same year.[/QUOTE] I'm curious, what do you think now that they've found it?
Can someone explain why almost the entire time MH370 was missing the news was talking non-stop about the locating device on the black box yet in this case, there is not a single mention of it? All they say are "Divers are in the water" looking for debris and that's it.
[QUOTE=Smoot;46868624]Can someone explain why almost the entire time MH370 was missing the news was talking non-stop about the locating device on the black box yet in this case, there is not a single mention of it? All they say are "Divers are in the water" looking for debris and that's it.[/QUOTE] I think in this case it's because they have a much better idea of where the plane is by now compared to the situation when MH370 was missing
[QUOTE=circuitbawx;46841376]I'm curious, what do you think now that they've found it?[/QUOTE] Not much different.
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