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Originally Posted by GroundedSpanner
(Post 8434501)
On the aircraft, things will be different. There the ULB will only be pulled just before the expiry date
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Pontius, that's how it is at an airline I am familiar with, the ULB's are physically checked at the smallest routine hangar visit, and replaced if they will not make to the next check. Other airlines may track each one in their computer system and could in theory replace it on the last overnight stop prior to expiry.
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Bluefin 21 Technology
Here's a good link to the technical capabilities of the Bluefin 21.
Technology » Bluefin Robotics |
I've spent considerable time on the beaches all the way to the far north, and they are pretty clean. Strikingly so by European standards. If something evidently from an aircraft washed up on a beach there'd be a good chance of spotting it from the air, I reckon. First BUT: from Kalbarri to Shark Bay is largely tall cliffs, not beach. Second BUT: the ocean currents don't appear generally to move stuff to the WA coast from out there, so the whole question is probably moot.
There is a lot of holidaying that happens along the coast, people 4wding up the beaches, camping there for weeks at a time, etc. It would be worthwhile, I suggest, releasing official images of the most likely buoyant items that might wash up somewhere, whether that's Christmas Island or Madagascar – e.g. seat cushions, life jackets, escape slides, whatever. How many members of the public would even know what colour these items would be on an MAS 777? |
Media release from JACC
Media Release 15 April 2014—am Up to nine military aircraft, two civil aircraft and 11 ships will assist in today's search for missing Malaysia Airlines flight MH370. Today the Australian Maritime Safety Authority has planned a visual search area totalling approximately 62,063 square kilometres. The centre of the search areas lies approximately 2,170 kilometres north west of Perth. The Autonomous Underwater Vehicle deployed last night from ADV Ocean Shield. After completing around six hours of its mission, Bluefin-21 exceeded its operating depth limit of 4,500 metres and its built in safety feature returned it to the surface. The six hours of data gathered by the Autonomous Underwater Vehicle is currently being extracted and analysed. Bluefin-21 is planned to redeploy later today when weather conditions permit. The weather forecast for today is south easterly winds with scattered showers and isolated thunderstorms, sea swells up to two metres and visibility of five kilometres. The Chief Coordinator of the Joint Agency Coordination Centre, Air Chief Marshal Angus Houston (Ret'd), will provide further updates if, and when, more information becomes available. |
Any idea if a new AUVD that can go deeper is on its way ?
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Originally Posted by Toruk Macto
(Post 8434804)
Any idea if a new AUVD that can go deeper is on its way ?
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How does it exceed its maximum operating depth, its automonous?
Is it in some bottom following mode for mapping purposes? Another words keep a constant height off the bottom? I would have thought if thats the case it would flag those areas and continue its mission at a constant height until it gets rising ground then go back to the original mode? |
rh200, yes it was in bottom following mode according to CNN.
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okay, the fish has a max depth, but the array onboard has a different depth for the scanforom the sidescan, as well as the mag or sub-bottom profiler.
the fish can auto fly above the bottom surface to maintain the proper overlap of the sidescan.. to be clear, the ss sensors are on either side of the fish and radiate downward. the fish is programmed to be at the optimum depth above floor to cover th floor. if the fish gets above the optimum depth, the area covered below the fish gets overlap and redundant, conversely, below, there will be gaps. |
Angus Houston said in the press conf yesterday that plans were a foot in regards to other options / vehicles. That was in response to a journos question.
He - and others - have been in the game long enough that they would have been looking at these types of things way out ahead as part of contingency planning, which isn't surprising considering his and others military backgrounds. They won't we resting and waiting until they need it. |
Now it's official
China’s Efforts in Hunt for Plane Are Seen as Hurting More Than Helping
http://www.nytimes.com/2014/04/15/wo...ping.html?_r=0 |
Redlands Echo Why was 'She' not deployed in the area of ping's detected by Ocean, until after the CVR/FDR batteries presumably expired? |
That is a big swipe from the NY Times, a big swipe.
Even if it is true, sometimes you wonder whether things are better left unsaid, at least until it is all over. Putting egg all over the Chinese faces is not going to help, just like the Chinese might have not helped. Angus is much more diplomatic in his press conferences, even if behind the scenes he has had a few words. Just my HO. |
Helpful or not
Thought the NYT piece was fairly well-tempered. And the fact is that the PRC cannot have it both ways - that is, the country cannot launch a significant effort within the overall SAR activity, but then claim immunity from being held accountable for its efforts. Or to claim any impropriety in those accounts being taken by responsible members of the SAR activity (or of the larger world civil aeronautics establishment).
Notice the careful structure of the Annex 13 (ICAO) investigatory effort detailed by the Malaysians on April 5 and 7....with proper assignations of Accredited Representatives (among other things). One wonders to what extent China's efforts in the SAR activity were likewise aligned with ICAO terms and procedures? Were its satellite imagery releases more like free-lancing or were they consistent with its later-designated Accredited Representative role? Same question, relative to its acoustic searches (or the 'reasonable facsimile thereof' depicted photographically in the small boat). The team effort of the SAR activity perhaps is a highly Westernized undertaking. Viewed from that perspective, the NYT article is mild stuff. |
Diplomacy and the way the interact with various agency across multiple nationalities is a fact of life. The same with releasing various facts and not others, whilst there is investigations going on.
Regardless of what we like to think as individuals of what our rights actually are or morally should be, in the real world its usually far different. At the end of the day the Authority's running the SAR will be doing the best that they can under what constraints they have. |
"Might be quite a show to see Angus Houston deliver crisp, and crisply appropriate, responses to the questions of Members of Congress, regarding the challenges of the SAR mission...."
Based on his previous testimony before committees, it would be very interesting :O I doubt he would pull any punches. |
FWIW, I am posting this from Shanghai. The NYT article is "not available" i.e. the Great Firewall of China is blocking it. The PLA Navy has acquired a good reputation for efficient co-operation with NATO Navies in anti-piracy operations.
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FWIW Hai Xun 01 has slipped around to Albany on South Coast - due in port later this afternoon.
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The PLA Navy has acquired a good reputation for efficient co-operation with NATO Navies in anti-piracy operations. |
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