I don’t know anything about anything but it feels kind of amazing that all four ejected with good looking parachutes given the orientation of the conglomerated plane.

Yeah it's pretty incredible, the way they came together the plane on top came pretty close to blocking the canopy of the bottom one, if it had gone a bit differently those pilots could have had nowhere to go but into the bottom of the other aircraft!

Something that seems interesting to me is that they all ejected at nearly the identical time. I'm curious if those systems are automated in case of scenarios like an unconscious pilot. If so, there may be automated clearance/angle systems, but that's speculation on top of speculation.

I'm guessing they coordinated by voice so that they didn't hit each other (again). If one ejects, then the plane rolls, the next person to eject could launch into someone else.

I think these ejection seats work in more or less any orientation.

I am more surprised that they didn't immediately blow up or lose control after colliding. Or even that the crew took that long to eject.

The ejection seat is going to do its thing regardless of orientation, but if that orientation is pointed at the ground you better hope you have enough altitude. There was one plane where the ejection seats ejected down and away from the plane that was known for low altitude missions. These seats were affectionately known as lawn darts.

The aircraft appear to have become "stuck" to each other perhaps due to aerodynamic forces similar to how a piece of paper gets stuck to a car windshield (probably something to do with one of the Bernoullis). There wasn't much of an impact to cause a destructive event such as compressor stall. Perhaps the pilots were waiting to see if the aircraft would become un-stuck, or to get clear airspace into which they could eject?

That’s my read as well, but I’m looking forward for an official analysis as things often aren’t as they appear.

I actually looks like the vertical stabilizer of the lower plane got lodged into the fuselage of the other.

75% of out-of-envelope ejections are fatal. A spinning aircraft that just started making out with another plane is definitely OOE. Those 4 pilots are incredibly lucky, assuming they all survived (looks like it?)

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I had the same thought, but those cockpit modules are really designed to maximize the odds of safe ejection, and I wouldn’t be surprised if they consider the possibility of failure and escape as part of the stunt design. Still, it’s amazing everything worked out, especially at that low of an altitude.

Do we know if the pilots are OK? Yes, ejection can save your life, but even in a best-case scenario the forces on the human body are incredibly ugly. I know a former combat-rated RAF pilot that had to eject from a Harrier because of a low-altitude bird strike. After 6 months in the infirmary, he emerged 2cm shorter, combat rating gone forever.

Arms and legs can take a serious beating too. Airplane cockpits are pretty tight spaces, and to be explosively shot out of one with little notice is.. yikes.

Ejection is often a career-ending event, unfortunately. Better than dying though.

You're generally limited to two ejections barring any disqualifying health issues. The military doesn't like to throw away its personnel investments when they've gained some hard won experience.

How so, because of the damage to the body?

They impart significant g forces (~15g) in line with the spine. Compression fractures are common, and most people permanently lose height as a result of the event. The goal is to provide a result better than death.

The pilots themselves initiated their ejections.

Admittedly I have nowhere near the flight hours, training, or expertise of these pilots, but having flown airplanes myself I can totally imagine in an off-nominal situation (which I have been in before) conscious focus is fully on flying the airplane even if your rote lizard brain is procedurally going through the motions of pulling the ejection handles or otherwise responding to the emergency. My instructor's words--he was a helicopter pilot (Hueys and Chinooks) in the Vietnam war with some 20k hrs logged in complex aircraft, jets, etc. since so I know for certain he knew wtf he was talking about--going through my head "do not ever stop flying the airplane". In this case, my conscious focus would be to stomp one of those rudder pedals as hard as I could to try to recover from the spin, even if I was also simultaneously yelling "eject" or whatever you're told to into the intercom and pulling the handles. But I haven't ever been trained to eject from an aircraft, or maybe my instinctive predilections would select me out of the training regimen these pilots go through.. who knows

Also, these are aircraft with two crew. Either can initiate the ejection sequence, at which point both crew will be ejected regardless of who initiated if I’m not mistaken.

I’ve never trained to eject, but I have trained in situations with parachutes, and the advice is to deploy early. If the thought crosses your mind, the answer is yes.

Yes, that too