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Commercial jet collides with Black Hawk helicopter near Reagan airport

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Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#351
post #243

Earlier quoted context omitted.

> there can be hundreds of arrivals per hour I Googled about this. London Heathrow is widely regarded as the busiest two runway airport in the world. They allow less than 50 arrival per hour. Are there any airports in the world that can have "hundreds of arrivals per hour"? Conservatively, 200 can be considered "hundreds", then you would need 8x runways operating at max capacity. That seems hard to imagine. Google al…

I think the 3D part is fine, it's more "all of physics" coming into play with a plane. Like bird strikes, engine failures, trying to decide how to handle that. What is the loss function the AI is supposed to apply if an emergency landing is needed? And then if you have people flying the planes, you have to deal with people mostly _but not always_ doing the right thing. So now you build out a plan and have to deal wit…

> If we can figure out self-driving cars, maybe we can talk about replacing pilots with AIs.

There's currently a human in the loop at almost all times but a great many planes are already self-flying. Autopilots are a thing, and have been for decades. Modern airliners routinely land themselves, and Garmin have developed an emergency landing system for general aviation aircraft which can handle everything including selecting an airport and communicating with ATC in the case of the pilot being incapacitated.

In many ways a self-piloting plane is an easier problem to solve than self-driving cars. Every plane has (or will have in the near future) a beacon on it transmitting it's location to every other plane around it to allow collision avoidance, and the procedure for getting from one major airport to another is pretty much prescribed in the form of standard departures, arrivals, and airways. The big difference of course is that if a car on the road breaks down and the AI can't handle it then the car can just stop, and baring someone not noticing and plowing into the back of them everyone will be fine, while if that happens in a plane it's a matter of time until the thing falls out of the sky killing everyone on board.

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#352
post #27

Not that being near DC affords me any kind of right to an opinion, but: Given the uptick in near miss incidents across the US the last few years, this is the kind of incident that should've been entirely avoidable through changes in policy from these past events but is also apparently the only kind that can spur along policy changes. I can see a world where the fault is on the VH-60, but absent more information, it w…

This seems to be a resolved problem and one that we shouldn't have in this era. An unnecessary tragedy.

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#353
post #163

Earlier quoted context omitted.

Air traffic control has a lot more things to deal with. There are scenarios like runway closed and all traffic has to be diverted. Loss of communication. Various emergencies. Weather changes. It's not just a question of 3D motion planning. Controllers in the tower also use their eyes. In your imaginary system how is the software "tower" communicating with airplanes, using voice? I don't think we even have software th…

Yes, it would require a piece of hardware, but that seems easy to regulate and wouldn't need to be very expensive certainly not in relation to the costs of owning and operating an airplane.

Seems like you’ve stumbled onto a very obvious solution that would be easy to implement and that no one else has ever managed to see, but which would totally revolutionize the airline industry. Time to start a business!

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#354
post #135

Earlier quoted context omitted.

Hiring controllers is not easy. A friend's daughter just went through the hiring process. She graduated from college with an appropriate degree right as COVID hit. Her FAA application wasn't accepted for four years. This past summer she did the four-week interactive online courses. Applicants must pass this and may not re-enter the program if they do not. After that she did the six-week courses in Oklahoma City. Agai…

In addition, ATC is not allowed to go on strike, limiting the degree to which they can bargain for better working conditions, pay, etc.

Then why is there an ATC union if, apparently, it can't affect any change?

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#355

Earlier quoted context omitted.

Weather was fine tonight. Also DCA is the most popular airport and congress would stage their own revolution if they had to go further.

I definitely think it’ll stay open for charter flights (part 135)

it’s actually really hard for private jets / charter (whether part 91 or part 135) to use dca. requirements include having an armed officer on board. as a result almost nobody flies charter into dca.

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#357

The real question, I feel, is whether the current U.S. government as it exists in 2025 is still capable of continuing to improve things, and whether it's still putting all the lessons of the past into practice - or whether we were just coasting on a combination of luck and the vestigial safety left to us by the diligence of the past.

Considering that the head of the FAA and TSA were forced to resign, and a hiring freeze on air traffic controllers is suddenly in effect, I don't think the current government wants to improve flight safety.

https://www.ainonline.com/aviation-news/air-transport/2025-0...

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#358

It’s probably really early to ask, but in case anyone here is knowledgeable and has any idea: why didn’t TCAS help avoid the accident? Isn’t it designed for such situations where 2 aircrafts collide? Do military crafts not have it or something?

as others have said, likely too low. tcas is pretty awesome (and yes, most military flights will use it), but it is (deliberately) muted/degraded at low altitudes (i think around 1500feet).

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#359
post #328

Earlier quoted context omitted.

Some regulations are written and blood but some regulations are written to cover someone's ass and the two should not be treated equally. We shouldn't give equal respect to the Federal Aviation Regulations and to OPM's Qualification Standards for Federal Jobs; doing so deligitamizes the importance of the former.

Ooh… which ones? Classic Edgerton’s Fence: If you don’t know why someone put up a fence, don’t take it down.

Typically, the ones that protect me are good, the ones that slow me down are bad. Easy!

Re: Commercial jet collides with Black Hawk helicopter near Reagan airport

#360

Are pilots landing at DCA conditioned to ignore TCAS warnings on approach? Would there have been one?

TCAS has a minimum altitude of 700ft AFAIK

It's 900ft AGL and below while descending

(CRJ pilot here)

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