Washed up scrap on beach - ATSB do not believe to be related
 

Just for anyone looking for images of what washed up and is deemed unrelated at this stage by the ATSB:

http://images.canberratimes.com.au/2...ane1-300x0.jpghttp://images-2.domain.com.au/2014/0...ane2-300x0.jpg

Repeat : DEEMED NOT RELATED so don't go crazy with guessing which part of the aircraft it was from :-)

Source: Debris from missing MH370 could wash up on WA coast: expert

My first thought was that this looked very much like aircraft relatet, however, when I look closer at it it seems to be from a (refrigerated) truck or sea going container. I've worked in that industry for many years and know the design of those. What you see is a part of the outside skin of the container. The structure that is on the underside and riveted to the outside skin is the vertical stringers which help connect the outside and inside skin and/or stiffen up the side panel. The stringers would be about 1 metres apart. In addition you see some of the insulation foam, which would be polyurethane in most cases or PVC if it was to withstand significant structural loads which is usually not experienced in a simple side panel of the container. The sheet metal would be steel or aluminum, alternatively stainless steel on the inside skin, with steel it would be about 0.5mm thick on the outside skin and closer to 1mm thick on the inside skin, with aluminum it would be about 1 to 1.5mm thick. In this case it looks to be aluminum though.

Picture of debris
 

Debris from missing MH370 could wash up on WA coast: expert

Where did you get the picture from? I can't find it in the article.

id
 

How was MH370 re-identified after total loss of primary and secondary radar and loss of R/T, and thus it`s track plotted ?

You have asked this question before and it was answered. Many other answers to the same question have also been answered.

Given your handle you must have a pretty good idea yourself.

SteinarN


Spot on with your assessment. Look at the fasteners and the foam; this is not anything I have seen on an aircraft.

Note that there is a centroid in each of the fasteners; this is not a pop or hylock used on a aircraft. Given the location its not from a truck!

Why is so much information being withheld in this case?

Is it simply because a lot of it is military and might reveal areas of missing radar coverage?

Is it reasonable to suppose all the radar data has been made available for the search, under an NDA? I read somewhere that Indonesia has been totally uncooperative.

Also I can't understand why any of the multiple weather satellites would not have picked up contrails. Unless the answer is that the aircraft flew low enough to not make them, in which case the search area is much too far south. But then what to make of the pingers? One really would hope that the frequency picked up was not 32.768Hz ;)

Why No Contrails Detected?
 

It was at night, so only IR satellites would see anything. Contrails are very narrow and probably outside the definition as seen by weather satellites.

If if would have been 32.768 it would have been reported as 32.768. But it was reported as 33..... I don't believe that the basic assumption here should be that the international searching team, the ATSB and have you are just plain idiots.

'Contrails are very narrow and probably outside the definition as seen by weather satellites.'


No, see here, a very clear con trail within the current search area, from 11th March. (EOSDIS website)


http://map2.vis.earthdata.nasa.gov/i...368&height=307

It's here

MH370 search: police tight-lipped about debris

Aircraft do not always form contrails it depends on the humidity of the air at the cruising level. So there may not have been a contrail to see.

Indeed Ian and the point about night images is also very valid.

The type of satellites which acquired the posted images are in orbits fixed with respect to the Sun and so pass over the ground at fixed local times (generally each side of midnight/midday). These times do not correspond to the time of the flight, certainly the part when the position is uncertain.

In general low earth orbit metsats (and other climate science missions like TERRA and AQUA from which the posted images originated) have a narrow swath they can view and only see a particular location at the very most twice per day. It is unlikely that one would come over when a particular contrail was in existence, even at the right time of day.

Geostationary metsats do not have the resolution.

I don't think the last couple of hours of the flight were in darkness.

I agree about the probable lack of resolution, but there are other satellites up there too.

Not sure if this has already been posted as it seems to be a week old but is a list of questions from family members. Not sure who the q's were sent to:

The key of questions from family members_??MH370?????_????

arearadar, (post 10,218), has raised a very valid point about how the aircraft was re-identified using primary radar. In the U.K, as far as I am aware, there are only 4 ways of doing this, and none of them could be employed here.
Military radar units may of course have other available techniques, unknown to civilian ATCOs.

The mil method of re-identing primary tracks is the same as civvy. No other box of tricks available.

Contrails only form under specific atmospheric conditions. Those conditions were not present in the Southern Indian Ocean when MH370 was lost and hence no contrails would be visible.

Contrails are large enough to be seen by both low-orbit and geostationary weather satellites.

Different targets reflect in different ways. There is plenty on this in the public domain.

Whether a given installation has the capability I have no idea, but you would think the military would, because any "target of interest" is not going to be Mode S and ADS-B OUT, with G-BOMB configured as the aircraft reg.