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Orient Thai plunges from sky after engine fails


webfact

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I have some doubt that any aircraft can stall at any speed as you state. I believe there is a certain stall speed associated with any fixed wing aircraft. It would be interesting to be proved wrong though.

He is correct, the stall depends solely on angle of attack and not airspeed. Of course there is a relationship and that the slower the aircraft the higher the angle of attack needed to keep it at altitude.

Good succinct answer....obviated my response but it was going to be "just google it!"

AFAIK the f-16 is the world's only plane whose maximum engine thrust exceeds its weight (which varies of course) so it can theoretically fly straight up like a rocket. But even one of those can stall out.

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Yesterday my big bike had to go for service to the Honda dealer (8000 km). They changed the oil and that was it.

After reading this thread i decided to check the maintenance schedule and of course they had to check/replace many more parts then just the oil.

Now my dealer has a problem. I'm tired of the Thai and their way of maintenance. You just can't trust them!bah.gif

That's a Thai bike, just bigger...?

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Report on the flight http://avherald.com/h?article=483fc32e

Hard to believe this airline is still in existence with their 1-2-Go debacle in Phuket. Couldn't pay me to get on one of their aircraft.

http://en.wikipedia.org/wiki/One-Two-GO_Airlines_Flight_269

"Well used" aircraft http://www.airfleets.net/ageflotte/Orient%20Thai%20Airlines.htm

I couldn't agree more. That company utilise nothing but flying coffins. Anyone who flies with them needs their head examining in my opinion.

It wasn't that jumbo that was parked at Udon for years was it ??? or similar aircraft.

Ha ha, I remember that, what the effin ell was that doing there?

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Report on the flight http://avherald.com/h?article=483fc32e

Hard to believe this airline is still in existence with their 1-2-Go debacle in Phuket. Couldn't pay me to get on one of their aircraft.

http://en.wikipedia.org/wiki/One-Two-GO_Airlines_Flight_269

"Well used" aircraft http://www.airfleets.net/ageflotte/Orient%20Thai%20Airlines.htm

I couldn't agree more. That company utilise nothing but flying coffins. Anyone who flies with them needs their head examining in my opinion.

You could write a book on Orient Thai incidents over the years and that not even including the fatel accident at Phuket. The airline is owned by an influential person.

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I have some doubt that any aircraft can stall at any speed as you state. I believe there is a certain stall speed associated with any fixed wing aircraft. It would be interesting to be proved wrong though.

He is correct, the stall depends solely on angle of attack and not airspeed. Of course there is a relationship and that the slower the aircraft the higher the angle of attack needed to keep it at altitude.

Good succinct answer....obviated my response but it was going to be "just google it!"

AFAIK the f-16 is the world's only plane whose maximum engine thrust exceeds its weight (which varies of course) so it can theoretically fly straight up like a rocket. But even one of those can stall out.

I believe it was a low level stall that was the cause of the recent Royal Thai Air Force F16 based out of Korat, sadly with the loss of the pilot.

I'm not sure your info about the vertical ascent is only possible for the F16, pretty sure the Mig 29 and Su 27 along with other FBW fighter jets have the same ability.

I would have thought that a vertical climb would have been dependent on how much thrust the afterburners produced, how much air is sucked into the intakes,and how much fuel she was carrying to feed the burners, hence why the majority of modern fighter aircraft can reach their ceiling altitude pretty quickly.

getting back to the topic however, as scary as this must've been for all on board, from that picture it didn't look like a full flight, it also stated that there was 119 on board, which would have also included the crew.. the 737-300 can carry up to 149 .. and here's me thinking that the flights to and from China have been packed, given the recent TAT figures ;)

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Report on the flight http://avherald.com/h?article=483fc32e

Hard to believe this airline is still in existence with their 1-2-Go debacle in Phuket. Couldn't pay me to get on one of their aircraft.

http://en.wikipedia.org/wiki/One-Two-GO_Airlines_Flight_269

"Well used" aircraft http://www.airfleets.net/ageflotte/Orient%20Thai%20Airlines.htm

I couldn't agree more. That company utilise nothing but flying coffins. Anyone who flies with them needs their head examining in my opinion.

It wasn't that jumbo that was parked at Udon for years was it ??? or similar aircraft.

Ha ha, I remember that, what the effin ell was that doing there?

They have been parked at Udon, Phitsanulok, Utapao, Korat, DMK and can be spotted at the side off the road in suburban Bangkok.

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Report on the flight http://avherald.com/h?article=483fc32e

Hard to believe this airline is still in existence with their 1-2-Go debacle in Phuket. Couldn't pay me to get on one of their aircraft.

http://en.wikipedia.org/wiki/One-Two-GO_Airlines_Flight_269

"Well used" aircraft http://www.airfleets.net/ageflotte/Orient%20Thai%20Airlines.htm

I couldn't agree more. That company utilise nothing but flying coffins. Anyone who flies with them needs their head examining in my opinion.

As I recall it was Orient Thai had bought the 747 that crashed on its last flight with China Airways ( CI 611).

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About 3 or 4 years ago a flew to phuket on air Asia and chaingrai on one to go. The air Asia plane looked very old and not cleaned at all on the outside. The One to Go plane looked almost new. Both medium size planes. Has something changed?

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Report on the flight http://avherald.com/h?article=483fc32e

Hard to believe this airline is still in existence with their 1-2-Go debacle in Phuket. Couldn't pay me to get on one of their aircraft.

http://en.wikipedia.org/wiki/One-Two-GO_Airlines_Flight_269

"Well used" aircraft http://www.airfleets.net/ageflotte/Orient%20Thai%20Airlines.htm

I was in Phuket a few weeks ago after a long break. They finally got rid of the wreckage which has been sat under a tarpaulin at the eastern end of the airport for years. They obviously had to expand the concreted area so they can park more aircraft.

Unfortunately they haven't expanded the airport building, which is a craphole.

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I always assumed forward momentum and glide ratio would prevent a plane from falling from the sky?

Bleed air issue on one engine. Had to conduct emergency descent. This would be done at a high descent rate, which would be felt as if the plane was "plummeting". It would be a rapid descent from 29,000 + feet, down to 10,000 in minutes. So, without a cabin announcement, I would say the "pucker factor" would be at the top of the scale. Especially in light of the GermanWings crash.

Bleed air is used to pressurize the cabin so they needed to get down to an altitude where the passengers wouldn't be hypoxic.

Interesting but, OT fly old 747's. Surely one engine failure would not shut down the entire bleed air system?

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AFAIK the f-16 is the world's only plane whose maximum engine thrust exceeds its weight (which varies of course) so it can theoretically fly straight up like a rocket. But even one of those can stall out.

They still fly the Lightning at air shows I think. Watched exactly that in awe when I was a kid.

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wow... maybe Japan, Korea and soon the rest of the world are right...

I'm sure they are. After what has already been said this is a massive slap in the face for Thai aviation

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AFAIK the f-16 is the world's only plane whose maximum engine thrust exceeds its weight (which varies of course) so it can theoretically fly straight up like a rocket. But even one of those can stall out.

When I was in the Air Force, I remember occasionally tower would give F4's approval for unlimited/unrestricted departure which means they are approved for vertical climb out. Example below but not quite vertical as he isn't at max performance and afterburners are not on. Photo here of 100% vertical though - https://www.pinterest.com/pin/12244230209251640/

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I'm a pilot that often flies a twin-engine aircraft and I can assure you that when an engine fails, the aircraft doesn't just "plunge out of the sky". If the pilot responds to it quickly, chances are passengers won't even notice (depending on the aircraft type). Planes can fly fine on one engine, especially if they are already straight and level at altitude.

Perhaps there was also depressurisation issues, hence the rapid descent and oxygen masks. It wouldn't just nose dive due to a single engine failure.

As a general point of interest, wouldn't a two engine jet require a lower altitude for single engine operations though? Something to do with the thrust to weight and air density.

Edit: Read in link this was indeed decompression like you said, hence rapid descent.

Incident: Orient Thai B733 near Kunming on Mar 28th 2015, loss of cabin pressure

http://avherald.com/h?article=483fc32e&opt=0

Edited by 55Jay
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you are not allowed to say that, its called thai bashing, or is it thetruth???

Another typical Thai news cover up...'It never happened '....'Sweep it under the carpet '....'It was Yingluck's fault '....Heads in the sand.....Living in denial.....Thainess.

In short....anything but the transparent truth.

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Had roundtrip bkk to krabi on this airline. As we boarded, there were other 1-2 Go planes on the tarmac with parts lying out in the open.

It was an old MD and all the signage in the cabin was in Spanish. It looked like it had been retrofitted for more seats and oxygen masks with shoddy riveting job above the seats. Seats looked like they hadn't been cleaned since the 70s. Cabin crew looked tired, unkempt, and some had runs in their nylons and old grandma shoes.

I immediately got uneasy.

Decided to book Thai Airways for the return to bkk.

About a week later the Phuket crash occurred.

As someone earlier mentioned, this airline shouldnot be allowed to be in business, but the owner and his wife are "people of status" here.

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Isn't this the Thai airline that had a plane impounded at Gatwick for months due to safety issues and had a nasty crash at Phuket amidst questions about safety procedures and the foreign pilot's qualifications and experience?

Yes it is. Also goes under the name 1 to go or some such nonsense. The alleged irregularities over the Phuket crash were cleared up in a way that was mutually satisfactory to all involved with the exception of the victims and their families. But the UK authorities obviously refused to negotiate with the slime and wouldn't let plane go till all the necessary work was done, which obviously wasnt thought necessary by the 12 employees who handle safety issues at the Thai Aviation Dept (nice lucrative work if you can get it).

It is very obvious that this airline would never has been given a licence to fly by any respectable aviation authority that cares for the lives of passengers and crew.

Edited by Dogmatix
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Oh nooo, more bad news for thai aviation.

Who will fly with any of them from now on? Not me or my collegues....

But this happened saturday? Then why it's in the news on tuesday??

This is a good example of exotic airlines in Thailand...

Those are carriers who give bad pictures of civil aviation in Thailand... old fleet with lack maintenance.

This is the main problem rise by ICAO since few year without fix by former "elect" government .................

All charter or small budget carriers in Thailand are under eyes of ICAO.......

Thailand has got 21 carriers only 8 reach ICAO standard.....

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