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-   -   Any "Latest & Greatest" about Delta? (https://www.airlinepilotforums.com/delta/36912-any-latest-greatest-about-delta.html)

Mesabah 05-01-2013 12:55 PM


Originally Posted by Sata 4000 RP (Post 1401595)
28 percent said Atlanta-based Delta was their No. 1 choice. The airline was preferred by13 percent more women than those who chose No. 2 United Airlines. Delta and United are the No. 1 and No. 2 largest U.S. carriers, respectively.

....For the chance to meet NewK.

forgot to bid 05-01-2013 01:59 PM

Was there any training on load shifts for you cargo guys?

Carl Spackler 05-01-2013 02:03 PM


Originally Posted by BlueMoon (Post 1400630)
A dash cam caught it on video. It is on liveleak. It is chilling. Went in slightly nose low, gear still down. I won't post it as I have two good friends that work there and was sick to my stomach when I heard there was an accident. Fortunately they were not onboard.

Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.

There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl

iceman49 05-01-2013 02:08 PM

Carl, what altitude did you start from?

surfnski 05-01-2013 02:13 PM


Originally Posted by Carl Spackler (Post 1401671)
Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.

There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl

Excellent assessment Carl. Sadly this is not on any syllabus, but it will be now.

A side note, Bagram departure on Rwy 21 heads into a box canyon (nice job russia) surrounded by 19,000 foot peaks. That would have been a pants-soiling recovery.

Josephus 05-01-2013 02:15 PM


Originally Posted by Carl Spackler (Post 1401671)
Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.


There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl

Wasn't that the issue with 1900 that went down in CLT? Not a CG issue, but an elevator issue... it was surmised that if they had rolled and reduced the vertical component of lift, they might have ridden it to the ground in a controlled crash.

Easy to discuss afterward, but almost impossible for most of us to pull off without practicing often.

Sad day.

Jay5150 05-01-2013 02:20 PM


Originally Posted by Carl Spackler (Post 1401671)
Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.

There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl


Holy crap. Makes sense but I know it's not something that would ever occur to me personally to even try. Especially right after takeoff.

Wilbur Wright 05-01-2013 02:29 PM


Originally Posted by Jay5150 (Post 1401690)
Holy crap. Makes sense but I know it's not something that would ever occur to me personally to even try. Especially right after takeoff.

To be honest, sitting at my computer I had already thought about Carl's recovery.

The source of my inspiration? I hate to admit it, but it was Denzel Washington in Flight. Whether I would have had that same thought that quickly after takeoff, I don't know. I hope I would at least think to roll it 90 degrees.

To be clear, not even a little bit judging the pilots. As Carl stated, we're trying to learn from their tragedy.

newKnow 05-01-2013 02:35 PM


Originally Posted by Carl Spackler (Post 1401671)
Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.

There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl


Thanks for posting this. Something to think about.

FedElta 05-01-2013 02:40 PM


Originally Posted by Carl Spackler (Post 1401671)
Incredibly sad. We all need to try to learn anything we can from the loss of these lives, and the following is meant for that purpose:

If they had cargo come loose, and If that resulted in an instant CG movement beyond the aft limits, a full aerodynamic stall and departure from controlled flight may have been preventable. I got to experience this very thing in the test environment, and the recovery technique is not immediately logical. At the first realization that pitch is not controllable (even with full forward yoke pressure), roll hard to the left or right to point the lift vector on or even below the horizon (90 to 100 degrees of bank angle). This causes the nose to quickly fall below the horizon and airspeed to rapidly increase assuming you leave power at full. As airspeed increases, level the wings and accept that the nose will rapidly rise again. Repeating this pattern results in gaining altitude with each roll reversal, and buys time to trim the stabilizer to the full nose down limit, select full flaps, and the aircraft is controllable with full forward yoke pressure.

There's no way you can pull this off without the instant reaction that only comes from prior training and mental preparation. Assuming the crew never got this training, they sadly had no chance. Not saying with certainty this recovery technique would have worked in this condition, but it may have.

Something to think about.

Carl

Carl,

How much pitch-up moment is created by firewall power on the 74 ?? On the A300/310 it is considerable, and has led to fatal consequences with experienced crews.

In your training were you taught to use rudder to induce the roll, if you had ineffective aileron authority ??....assuming high alpha/ low airspeed...

Regards,
BG


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