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What Happened to Malaysia 370? Part II

Discussion in 'Off Topic [BG]' started by Jim Campbell, Apr 5, 2014.


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  1. I believe this is of enough interest to continue.Let us keep the derailments,second gunman theories,grassy knoll etc. for elsewhere .If nothing else the input from those in the aviation industry has been a real education.
     
  2. OP here. Thank you Jim for setting up part 2.
     
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  4. thank you for thinking of it in the first place....
     
  5. will33

    will33

    May 22, 2006
    austin,tx
    News is now saying a chinese ship, outside of the assigned search zone, but comparatively close by, still basically several hundred miles generally west of Perth, has picked up a 37.5 khz "chirp". They're saying this frequency could possibly ocean mammals voices, but it repeated at a fairly continuous rate of once per second which would point towards it being the black box.

    Basically, haven't pulled a plane out of the water yet, but believe this is the best sign so far. Assets heading towards the scene, hopefully before the batteries die.
     
  6. i may be wrong but is there not anti submarine gear that can be air dropped and the floating "pylons" used to triangulate locations from aircraft.......
     
  7. will33

    will33

    May 22, 2006
    austin,tx
    I think there are. I think this location is a couple hundred miles outside of the assigned search zone.

    The news, in their never ending quest for accurate reporting, first said megahertz, then said kilohertz, as if that's just some minor difference/clarification.:rollno:

    Anyway, just because there's "something" doesn't mean it's the box, but it's a promising lead.

    Any of you pilots know if 37.5 Khz, or Mhz, is consistent with these boxes?
     
  8. ArtechnikA

    ArtechnikA I endorsed a check once... Gold Supporting Member

    Feb 24, 2013
    SEPA
    I am not an active pilot but WikiPedia and a few other sources surveyed quickly agree 37.5 kHz is the freq.
     
  9. NWB

    NWB

    Apr 30, 2008
    Kirkland, WA
    Yep. Sonobouys are dropped by anti-sub planes to detect submarines. It would seem that this technology would work for locating any underwater signals.
     
  10. Frenchy-Lefty

    Frenchy-Lefty

    Sep 8, 2009
    Too bad it is not a 37.5 Hz signal, it would indicate the presence of 5 strings bass player jamming somewhere in the ocean
     
  11. ArtechnikA

    ArtechnikA I endorsed a check once... Gold Supporting Member

    Feb 24, 2013
    SEPA
    The technology, sure. However - range of the underwater beacon is but a few kilometers. And while the sonobouys are good at hearing 'submarine sounds' i wonder if they're really listening in the ultrasonic region...
     
  12. as designed for anti sub work,no,but it would seem logical to have similar devices set up for fdr/cvr pings available for recovery operations
     
  13. All just in time for ptII. How considerate.

    If it's the right frequency, coming from a black box, they need to be virtually right on top of it to pick it up. Fuel for the conspiracy theorists, as the chances of coming across it randomly are tiny.

    Leaving conspiracy aside, possible dodgy reporting too, it would seem they should be finding wreckage soon and eventually boxes.
     
  14. sems to me they could have air dropped a bunch of them and the ships could recover them later,rather than wait for ships to get to the locations..
     
  15. will33

    will33

    May 22, 2006
    austin,tx
    I've read the same thing that the "ping" range of the black box signal is 2 - 3 miles ( ~5km? ). That also depends some on the geography of the ocean floor and where they're at, it could be 2 of those miles just from the bottom straight up to the surface. A ship would have to be almost right on top of it to catch the signal, to even know where to tell any underwater craft to even start looking.

    We're also 27-28 days into the life of what they say is a 30-day battery, that may or may not have been stored properly, thus possibly shortening its working life some amount.
     
  16. GregC

    GregC Johnny and Joe Gold Supporting Member

    Jan 19, 2007
    Chicago
    I really hope this is it, for everyone's sake. Fingers crossed.
     
  17. will33

    will33

    May 22, 2006
    austin,tx
    +1

    For me, it's been a really interesting, real-life mystery.

    For the families involved, it's been a month of pure agony and the emotions that come with lost loved ones never being able to get past the initial "what happened" and deal with it. Like a whole month of the initial shock that won't stop. That's got to be just awful, having hopes raised only to be crushed again, over and over.
     
  18. will33

    will33

    May 22, 2006
    austin,tx
    Should be getting daylight DownUnder. Maybe today/tonight will bring something.
     
  19. NWB

    NWB

    Apr 30, 2008
    Kirkland, WA
    I'd think so, but perhaps there are limitations to the technology in this case.
     
  20. You can bet the Chinese ship is doing small circles 24/7 trying to relocate the signal. Beats me how they can only lock onto it for a minute at a time. Perhaps the battery gives its all and the transmitter shuts off but resting allows a little extra voltage to build up and it gives another spurt. Or it's aliens messing with us.
     



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