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MH370: Malaysia releases satellite analysis



 
 
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  #11  
Old March 26th 14, 09:37 AM posted to alt.aviation.safety,alt.disasters.aviation,rec.aviation.military,rec.aviation.piloting
Keith Willshaw[_6_]
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Posts: 5
Default MH370: Malaysia releases satellite analysis

On 26/03/2014 00:51, LP wrote:
"Government Shill #2" wrote:
On Tue, 25 Mar 2014 19:33:05 -0500, "LP" wrote:


wrote:
On 03/25/2014 11:04 AM, LP wrote:
http://www.theguardian.com/world/201...a-live-updates

I'm wondering why all the secrecy in the first ten days, if this is the
outcome. Why was the transponder initially turned off, if it wasn't a
hijacking or crazy pilot suicide plot? Any ideas or theories?

Everything I saw about the pilot didn't sell me on the suicide bit. How
about the crew struggling to fly an unfylable maybe depressurized
airplane, or passed out? Secrecy? We have NOTHING but alleged opinion,
no pieces, no bodies, no verifiable DNA, no NOTHING. I'll wait for facts
and data and until then everything stays on the table.

I agree that there are more questions than answers, but I can't think of
one
reason to turn off the transponder if my plane is on fire, depressurized,
etc.


If the fire was in the transponder, or something effecting the power
supply to
the transponder... or the depressurisation was caused by the transponder
antenna
ripping out and leaving a hole in the fuselage...?

There's a couple of reasons. Just tossing out some crazy ideas.


Thanks for brainstorming for a reason. Seems more than we have got from the
media. This morning on abc was all about what the ping sounded like on a
real black box. guffaw Just the facts, please, if you can find them abc.

At this stage, my money is on the systems being deliberately switched of
by
person, or persons, unknown. This is based on wild eyed guesswork on my
part.


I find it strange that it supposedly flew for over 7 hours total. With
submarines all over the Indian Ocean, you would think they would have picked
up the ping on the box.

LP



1) The Indian Ocean is BIG
2) Nuclear Submarines typically operate submerged with no radar working
3) DE Submarines tend to lurk around main shipping routes and also
practise EMCON

Keith
  #12  
Old March 26th 14, 01:08 PM posted to rec.aviation.military,rec.aviation.piloting
Vaughn
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Posts: 154
Default MH370: Malaysia releases satellite analysis

On 3/26/2014 4:37 AM, Keith Willshaw wrote:
1) The Indian Ocean is BIG
2) Nuclear Submarines typically operate submerged with no radar working
3) DE Submarines tend to lurk around main shipping routes and also
practise EMCON


Correct me if I'm wrong, but:

Listening for a "ping" is a passive operation. Simply listening
involves no emissions of any kind from the submarine. Still, given the
published 2 KM range of the black box's pinger, the chances of a
submarine blundering close enough to detect it are small given the vast
search area.
  #13  
Old March 26th 14, 03:01 PM posted to rec.aviation.military,rec.aviation.piloting
Jim Wilkins[_2_]
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Posts: 52
Default MH370: Malaysia releases satellite analysis

"Vaughn" wrote in message
...
On 3/26/2014 4:37 AM, Keith Willshaw wrote:
1) The Indian Ocean is BIG
2) Nuclear Submarines typically operate submerged with no radar
working
3) DE Submarines tend to lurk around main shipping routes and also
practise EMCON


Correct me if I'm wrong, but:

Listening for a "ping" is a passive operation. Simply listening
involves no emissions of any kind from the submarine. Still, given
the published 2 KM range of the black box's pinger, the chances of a
submarine blundering close enough to detect it are small given the
vast search area.


I haven't seen whether that refers to the straight-line spherical
radius to the box or the circular radius around it on the surface. A
sub could more easily listen below the Deep Scattering Layer. However
having more than one nation's boats searching, and recording each
others' sound signatures, may not be a good idea for us.



  #14  
Old March 26th 14, 07:21 PM posted to rec.aviation.military,rec.aviation.piloting
Keith Willshaw[_6_]
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Posts: 5
Default MH370: Malaysia releases satellite analysis

On 26/03/2014 12:08, Vaughn wrote:
On 3/26/2014 4:37 AM, Keith Willshaw wrote:
1) The Indian Ocean is BIG
2) Nuclear Submarines typically operate submerged with no radar working
3) DE Submarines tend to lurk around main shipping routes and also
practise EMCON


Correct me if I'm wrong, but:

Listening for a "ping" is a passive operation. Simply listening
involves no emissions of any kind from the submarine. Still, given the
published 2 KM range of the black box's pinger, the chances of a
submarine blundering close enough to detect it are small given the vast
search area.


Especially given that the average depth of water in that area is around
4 km. Finding it will require a towed array.

Keith
  #15  
Old March 26th 14, 08:15 PM posted to rec.aviation.military,rec.aviation.piloting
george152
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Posts: 158
Default MH370: Malaysia releases satellite analysis

On 27/03/14 07:21, Keith Willshaw wrote:

Especially given that the average depth of water in that area is around
4 km. Finding it will require a towed array.

Keith


First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft
  #16  
Old March 26th 14, 09:23 PM posted to rec.aviation.military,rec.aviation.piloting
Daryl[_3_]
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Posts: 11
Default MH370: Malaysia releases satellite analysis

On 3/26/2014 1:15 PM, george152 wrote:
On 27/03/14 07:21, Keith Willshaw wrote:

Especially given that the average depth of water in that area is around
4 km. Finding it will require a towed array.

Keith


First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft


The debris will have floated for about 100 miles riding the currents.
No help from that.

--
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the Largest Collections of Public Domain and Classic TV on
the Internet.
  #17  
Old March 26th 14, 10:16 PM posted to rec.aviation.military,rec.aviation.piloting
Jeff Crowell[_6_]
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Posts: 4
Default MH370: Malaysia releases satellite analysis

george152 wrote:
First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft


Daryl wrote:
The debris will have floated for about 100 miles riding the currents. No
help from that.


Ocean currents are to some extent predictable and consistent in
vector. Of course it will help.

Search area goes from a bazillion square miles to hundreds.


Jeff
--
99 percent of lawyers give the rest a bad name.
  #18  
Old March 26th 14, 11:19 PM posted to rec.aviation.military,rec.aviation.piloting
Keith Willshaw[_6_]
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Posts: 5
Default MH370: Malaysia releases satellite analysis

On 26/03/2014 20:23, Daryl wrote:
On 3/26/2014 1:15 PM, george152 wrote:
On 27/03/14 07:21, Keith Willshaw wrote:

Especially given that the average depth of water in that area is around
4 km. Finding it will require a towed array.

Keith


First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft


The debris will have floated for about 100 miles riding the currents. No
help from that.


As it happens you do get some help from that. The winds and currents can
be used to estimate the position of the crash. That technique was used
to find the remains of Air France 447. They combed the likely area using
a towed sidescan sonor until they found the submerged debris field.

Keith
  #19  
Old March 27th 14, 12:48 AM posted to rec.aviation.military,rec.aviation.piloting
Daryl[_3_]
external usenet poster
 
Posts: 11
Default MH370: Malaysia releases satellite analysis

On 3/26/2014 3:16 PM, Jeff Crowell wrote:
george152 wrote:
First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft


Daryl wrote:
The debris will have floated for about 100 miles riding the currents. No
help from that.


Ocean currents are to some extent predictable and consistent in
vector. Of course it will help.

Search area goes from a bazillion square miles to hundreds.


Jeff


Hundreds just as well be bazillion at that point.

--
Visit http://droopyvids.com for free TV and Movies. One of
the Largest Collections of Public Domain and Classic TV on
the Internet.
  #20  
Old March 27th 14, 12:51 AM posted to rec.aviation.military,rec.aviation.piloting
Daryl[_3_]
external usenet poster
 
Posts: 11
Default MH370: Malaysia releases satellite analysis

On 3/26/2014 4:19 PM, Keith Willshaw wrote:
On 26/03/2014 20:23, Daryl wrote:
On 3/26/2014 1:15 PM, george152 wrote:
On 27/03/14 07:21, Keith Willshaw wrote:

Especially given that the average depth of water in that area is
around
4 km. Finding it will require a towed array.

Keith

First find the debris field.
Then work your way back to begin scanning the ocean floor.
It'll take time and surface ships.
Nukes have other duties than looking for downed aircraft


The debris will have floated for about 100 miles riding the currents. No
help from that.


As it happens you do get some help from that. The winds and currents can
be used to estimate the position of the crash. That technique was used
to find the remains of Air France 447. They combed the likely area using
a towed sidescan sonor until they found the submerged debris field.

Keith


How deep was the area that 447 went down in. This one went down in one
of the deepest oceans. You pretty well have t be right on top of it to
pick up anything. And it has to be done fast before the battery runs
down on the black box. Once the battery is gone, it will never be
located unless some Scifi things creap up. Now I know that the Seaview
could probably find it.





--
Visit http://droopyvids.com for free TV and Movies. One of
the Largest Collections of Public Domain and Classic TV on
the Internet.
 




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