quote:

Originally posted by sns3guppy:

quote:

Originally posted by sigcrazy7:
If the armor around the tail engine of a DC10 couldn't prevent UA232 in Sioux City, then there's no way I'm willingly sitting in line with the compressor of a jet engine. Maybe it's statistically irrational, but there it is. It's one of my hangups, and this story just reinforces it.

There's no armor in the engine or tail of the DC10. The #2 engine sits so far back in the nacelle that there's little to hit with an uncontained failure, except the auxiliary power unit, and of course hydraulics. It was loss of hydraulics that created their problem. Today, the DC-10 and MD-11 have hydraulic inline fuses to prevent loss, and in particular, the #3 hydraulic system incorporates what's sometimes called the "sioux city" valve which shuts off hydraulics to the tail area in the event system fluid drops below 4.75 gallons.

...

While your typically pedantic explanation provides some interest, I did admit that my feelings WRT sitting beside an engine are not based in logic.

My brother has been a commercial pilot for nearly twenty years, NW and then Delta, and he has never related a single experience of mechanical failure similar to the ones you seem to have weekly. You aren't flying for Aeroflot, are you?

OK, are we about through with this?

If you have any comments you wish to make, do so now. I'm locking this by the end of the day.

quote:

Originally posted by JALLEN:
resolve things without loss of dignitude.

Dignitude? Is that a legal term?

This is why, after the Dr. Dao incident, I no longer participate in aviation-related threads (though I guess you could say I'm participating with this response... ).

IBTL...

Me too. Ibtl. Jimmy apparently has a buddy who is a pilot.

IBTL. The pilot obviously did a great job getting the plane down safely, but I just want to briefly comment that the pilot was eerily calm on the radio transmissions I've heard. I mean almost too calm. Not just that though, her dialog and responses didn't even feel like she was speaking or responding with any kind of urgency or directness. It is great that someone, especially the pilot can keep their composure in a situation like that, but she was very nonchalant about the whole thing to the point that it was almost "mechanical".

It's like sendec and testpilot had a kid who then went to flight school.



And just more proof journalism is dead, this winner of an article from Daily Mail UK. (It's now further down the page, but was up top this AM.)

http://www.dailymail.co.uk/new...age-Flight-1380.html


Southwest Airlines passenger paid $8 to leave Facebook Live goodbye message on Flight 1380

By Madhvi Mavadiya

A passenger on the Southwest Airlines jet that suffered a explosion resulting in a broken window through which a woman was nearly sucked out, was forced to pay for WiFi so that he could Facebook Live his ‘final moments’. (My emphasis)

Marty Martinez, 29, was also on Flight 1380 and sitting a few rows from mother-of-two Wells Fargo executive, Jennifer Riordan, who was killed after she was almost sucked out of her window following the midair explosion on the New York to Dallas flight.

A harrowing photograph taken in the air shows the exposed, mangled engine after it exploded. The pilot flew like this for 12 minutes until she made her emergency landing

While hero ex-Navy fighter pilot Tammie Jo Shults calmly told air traffic control that part of the aircraft was missing and there were injured passengers on board, oxygen masks were deployed onboard and Marty decided to use a credit card to pay $8 for WiFi on board the plane.

The digital marketing entrepreneur went on to make his broadcast ‘because I wanted to reach the people I love’ and went on to say: ‘Something is wrong with our plane! It appears we are going down! Emergency landing! Southwest flight to NYC to Dallas!!’.

After Tammie landed the plane safely, Marty later wrote on Facebook: ‘I literally bought WiFi as the plane was going down because I wanted to be able to reach the people I loved...thinking these were my final moments on earth.

‘And put in a position to have to prioritize the people I loved to send them my final words was an absolutely gut wrenching feeling. So I thought to Facebook LIVE my experience, thinking this would be my last communication with the people I loved and my team back home.’
The Southwest Airlines jet had to make an emergency landing because of a damaged engine


The Southwest Airlines jet had to make an emergency landing because of a damaged engine

Marty also send a text to his family and friends, which read: ‘I want you to know that I love you all and thank you for all you’ve done’. He also shared his ‘thoughts and prayers’ with Jennifer Riordan’s family after he found out that she did not make it out alive.

In conversation with The Toronto Star, he said that he saw passengers huddled around a woman slumped in her seat where the window had blown out and were trying to stuff jackets and coats into the broken window.
Video playing bottom right...

‘A man was helping - there was blood all over him. She made no noise at all. I could see the blood all over the gentleman’s hands,’ Marty said. He predicted that the plan descended for 10 to 12 minutes and he was able to get mobile phone connection, but couldn’t get through to his mother.

‘I felt like I had minutes left. I was bracing for an explosion. And then I saw the runway. It was only when he had hit the ground and you could tell the plane was slowing down - there just a sign of relief and cheers across the plane. Everyone was just so grateful to be alive’.
Jennifer Riordan was killed after she was almost sucked out of her window after the explosion

Jennifer Riordan was killed after she was almost sucked out of her window after the explosion

Southwest Airlines said they had not found any problems with the plane and the engine when it was inspected on Sunday, April 15, 2018.

quote:

Originally posted by Dtech:
IBTL. The pilot obviously did a great job getting the plane down safely, but I just want to briefly comment that the pilot was eerily calm on the radio transmissions I've heard. I mean almost too calm. Not just that though, her dialog and responses didn't even feel like she was speaking or responding with any kind of urgency or directness. It is great that someone, especially the pilot can keep their composure in a situation like that, but she was very nonchalant about the whole thing to the point that it was almost "mechanical".

Professionals. Sully was quite calm as well.

Cut out this silly IBTL stuff. Long ago, I asked you guys to refrain from this stuff.

quote:

Originally posted by Dtech:
IBTL. The pilot obviously did a great job getting the plane down safely, but I just want to briefly comment that the pilot was eerily calm on the radio transmissions I've heard. I mean almost too calm. Not just that though, her dialog and responses didn't even feel like she was speaking or responding with any kind of urgency or directness. It is great that someone, especially the pilot can keep their composure in a situation like that, but she was very nonchalant about the whole thing to the point that it was almost "mechanical".

As it should be.

quote:

Originally posted by Dtech:
The pilot obviously did a great job getting the plane down safely, but I just want to briefly comment that the pilot was eerily calm on the radio transmissions I've heard. I mean almost too calm. Not just that though, her dialog and responses didn't even feel like she was speaking or responding with any kind of urgency or directness. It is great that someone, especially the pilot can keep their composure in a situation like that, but she was very nonchalant about the whole thing to the point that it was almost "mechanical".

I'm curious as to how that rates a ? I was also impressed by the calmness and professionalism of the pilot. Would you feel better if she sounded scared or panic stricken on the radio? Kudos to her, in spades.

I complimented the pilot twice in my post and the was essentially emphasizing MY surprise at how ultra calm, cool, and collected she was (e.g. almost "mechanical"). I never would have imagined someone being THAT calm in a situation like that, but again kudos to her indeed.

quote:

Originally posted by Dtech:
IBTL. The pilot obviously did a great job getting the plane down safely, but I just want to briefly comment that the pilot was eerily calm on the radio transmissions I've heard. I mean almost too calm. Not just that though, her dialog and responses didn't even feel like she was speaking or responding with any kind of urgency or directness. It is great that someone, especially the pilot can keep their composure in a situation like that, but she was very nonchalant about the whole thing to the point that it was almost "mechanical".

I was watching FoxNews report on the accident and she sounded just fine to me, calm in control, no panic, exactly what you want in the Captains chair.

She stated to the controller that she had "150 souls on board" not passengers. That should drive CNN nuts...

SOB: Souls on Board is the standard terminology internationally for the number of persons on the aircraft, without regard to crew or passenger.

Probably got the best training in the world before this job.

https://www.nbcnews.com/news/u...lane-was-one-n866951

Considering how many aircraft are in the air at any given time daily, this is a rare event. The results of the final NTSB investigation will prove to be an interesting read.

Condolences to the family of the woman who perished, kudos to the pilot and fight crew.

quote:

Originally posted by sigfreund:

quote:

Altitude / Time of Useful Consciousness
45,000 feet MSL / 9 to 15 seconds

Okay, I’ve seen this sort of chart before and puzzled over it, but I still have a question.
Even at the altitude where I live and despite being in my 70s, if I suddenly stop breathing, I can go 20 seconds or more without having to gasp for breath. When I can’t hold my breath any longer, I’m still far from losing unconsciousness. Plus, according to what I can find with a quick search, at 45,000 feet a breath would give me about 16% of the amount of oxygen I would get at sea level (and nearly 25% of what I get here), unlike the 0% that I get when I stop breathing. I would think, therefore, that that bit of oxygen would keep me going for even a little longer.

So my question is, What’s the basis for the 9 to 15 seconds of useful consciousness figure? Is there something about being at really high altitude that depletes our oxygen saturation faster than just not breathing at all? It’s not something I’ve noticed where I live, but I get 69% of sea level oxygen per breath rather than 16%, so I could be ignorant of something.

Not an expert on the subject but in the diving world, we look at particle pressure of gases. In diving, the pressures are greater than sea level but the same theory applies at lower pressures. Oxygen at sea level is safe to breath 100% for a while. Breath that same gas at greater than 20' and it can kill you. As pressure changes so do the particle pressure of the gas in your body. At higher particle pressures more of a gas will enter the bloodstream. The reverse will happen at lower pressures(at altitude). Less oxygen is in the air and because of the lower pressure, less oxygen is entering your bloodstream and able to oxygenate your body and brain.

What is it with these threads about commercial flight? Suddenly, everyone's an expert and is absolutely positive that they're right.

Locked, and if we never again had another one of these threads, I'd be fine with that.