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12th Apr 2014, 14:06
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Alloyboobtube

Disagree. With new tech we can help prevent the next airplane go missing and save its occupants. If we just shrug, we'll eventually get more of the same type of accident as this.



However, by...
27th Mar 2014, 16:08
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

glenbrook,

Not quite true. The AF447 accident happened on 1 June 2009 and a preliminary report was issued on 2 July 2009.

ICAO Annex 13 prescribes that a preliminary report shall be issued within thirty...
18th Mar 2014, 18:10
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

AIS, MMSI, IMO

A few tidbits on this topic:

- AIS is not mandatory for ships less than 300 tons dw. Neither for military ships, I believe. So don't expect AIS from every rescue ship.

- An AIS transponder...
17th Mar 2014, 19:16
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Turning off the transponder in-flight

I'm trying to sketch a workable technical solution that makes it all but impossible to go invisible the way MH370 did.

From the various comments, it's evident that there are indeed legal...
16th Mar 2014, 15:01
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Re transponder turn off

Yes.
But.
Turning off the transponder in flight without notifying ATC is.... a no-no.

Technology exists that can solve this dilemma, see e g here...
16th Mar 2014, 12:24
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

VinRouge

I stand corrected on this Doppler thing :O . Perhaps some RF experts are even working on it.
16th Mar 2014, 11:25
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

VinRouge

Just a moment please. Sputnik was a polar-orbiting satellite, not a geostationary one. And the Americans certainly did not have any geostationary satellites in 1957.

You can track polar orbiters...
16th Mar 2014, 10:11
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Cura

Thanks for that, but it was actually the "Triggered Transmission of Flight Data (http://www.bea.aero/en/enquetes/flight.af.447/triggered.transmission.of.flight.data.pdf)" working group report that I...
16th Mar 2014, 09:22
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

awblain, No, of course, but they may...

awblain,



No, of course, but they may think twice if they know they can be traced.

My post was actually partly inspired by a BEA study post-AF447 investigation, referred to somewhere in...
16th Mar 2014, 08:44
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Tscottme

I'm sure this question will be addressed in the eventual accident report, so a few words from an engineer.

Let's recall that the B777 and its systems design was done in the early 1990s....
15th Mar 2014, 11:46
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

In theory, yes. The phone may try to perform a...

In theory, yes. The phone may try to perform a location update, especially if it senses a new network such as at a border crossing. But (and referring to e g China Mobile statements) if the location...
15th Mar 2014, 10:42
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

This has been discussed repeatedly during the...

This has been discussed repeatedly during the last 24h but I'd like to summarize.

I have seen two reasons so far.
1. in case of equipment fire there has to be a means to cut electrical power to...
15th Mar 2014, 10:03
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

StormyKnight That's an interesting...

StormyKnight


That's an interesting picture but I'm not sure the signal strength method is the only method available for "triangulation" in this case. I'll outline some general methods that are...
10th Mar 2014, 16:24
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

AN2 driver,

If you mean the Vung Tau sighting,
Sorry to disappoint you but in previous postings the flight plan route was over the Vietnamese mainland via BITIS over TSN and HCMC.
10th Mar 2014, 16:14
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

barti01,

Yes.
Vung Tau Port Authority already had a passing ship check the area and it reported nothing special. The Port Authority have also sent out a fast boat, but it will not have arrived before...
10th Mar 2014, 12:49
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

SAR Vietnam update

Short update at the end of today's air search in the Vietnam area:

- Vietnamese helicopter Mi-171 02 and the DHC-6 have returned to base at Phu Quoc and reported no positive sightings.

- The...
10th Mar 2014, 10:30
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

SAR

Two items of interest, as local sunset approaches in approx 45 minutes:

- HQ Search and Rescue Aviation Administration reports Hong Kong authorities have notified a "large area of debris" reported...
10th Mar 2014, 09:06
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

SAR

New information dated 1520 local (UTC+7 i.e. 0820Z) says a Vietnamese search vessel HQ637 has identified a "cable roll cover" or "mossy fiber roll lid" at the position where a suspected "liferaft" or...
10th Mar 2014, 07:46
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

SAR

This is still Google translated so careful...

1400 local: Singapore's C130 is said to have sighted "a suspected lifeboat-like object" at N081605 E1025111, 140 km SW of Tho Chu island.
...
10th Mar 2014, 06:57
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Update - Vietnam SAR

Very briefly:

- Square orange object, buoy suspected, spotted by DHC6 at 1020 local time (UTC+7 i.e. 0320Z), position N074730 E1025712. Investigating.

- The suspected "window liner" object...
9th Mar 2014, 13:53
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Weather considerations

I delved a little into this in order to get some feeling for possible wind and current drifts. I found the closest stations to be Kuala Terengganu (WMKN) in Malaysia and Phu Quoc (VVPQ) in Vietnam,...
9th Mar 2014, 12:46
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Update - Photo of suspected debris

This is a picture from Dantri of the "window liner" object that was sighted just before nightfall today.

https://dl.dropboxusercontent.com/u/19786702/MH370/0309%20debris%20Q1_-a001c.jpg
...
9th Mar 2014, 12:27
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Barrel owl

Links to Dantri (http://dantri.com.vn/) and Thanh Nien (http://www.thanhnien.com.vn/pages/default.aspx)


Here's a map of the most interesting sightings so far. The red pins are from today.
...
9th Mar 2014, 12:05
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Update - Vietnam SAR

According to a Thanh Nien report, a "composite inner wall window piece" would have been spotted by a Vietnamese marine police seaplane (the DHC-6?) at N473208 E1032226. The seaplane had to return...
9th Mar 2014, 11:56
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Update - Vietnam SAR

Sun has set and soon we should get reports from airborne search. The most recent I've seen, from a Thanh Nien reporter aboard Mi-171 helicopter no 02, was negative however. It took off after the...
9th Mar 2014, 09:47
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

More on Vietnamese SAR effort

Some additional information from the Thanh Nien :

- Seems my coordinates for the "suspicious objects" were slightly off, should be E082136 N 1031330. The map below has it plotted:
...
9th Mar 2014, 09:20
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Update of Vietnam SAR effort

The two AN-26 planes have landed after their morning flight. At 1440 local time, they reported "suspicious items floating in the sea" at N083621 E1031330. An Mi-171 helicopter and surface ships have...
8th Mar 2014, 20:35
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

I've browsed the Vietnamese news sites. Google's...

I've browsed the Vietnamese news sites. Google's translator is far from perfect, but very interesting anyway. The Thanh Nien site (http://www.thanhnien.com.vn/pages/default.aspx) has some interesting...
8th Mar 2014, 15:57
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

LegallyBlonde,

It has been said on this (http://dantri.com.vn/xa-hoi/tau-viet-nam-dang-tiep-can-vung-bien-nghi-co-2-vet-dau-loang-847225.htm) and other sites that airborne search is paused for the night, but...
8th Mar 2014, 13:30
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Assuming the aircraft is located in a few days at...

Assuming the aircraft is located in a few days at most,

Any guesses on when we can expect the FDR and CVR to be retrieved? is the necessary equipment available in the area or will specialist...
8th Mar 2014, 12:10
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

The posting in AVHerald's chat with the AN26...

The posting in AVHerald's chat with the AN26 observation seems to have disappeared, but here is a Vietnamese site...
8th Mar 2014, 11:27
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

Avherald...

Avherald (http://avherald.com/h?article=4710c69b&opt=0) has an unconfirmed post about a Vietnamese AN26 search aircraft spotting an oil slick at N 7.55 E103.15. The post says it's from vietnamese...
8th Mar 2014, 09:40
Replies: 11,831
Views: 24,371,037
Posted By snowfalcon2

I'm puzzled. It's now approx 18:30 local KL time...

I'm puzzled. It's now approx 18:30 local KL time and sun sets in 1 hour. Local weather seems favourable for searching, the search area seems to be fairly well defined and there appears to be good...
Showing results 1 to 33 of 33


 
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