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United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

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Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#401

Earlier quoted context omitted.

Why is that suprising? Serving static content is easy

...and yet, very rarely done. That the correct technology for a news site (static content) was done, is the surprising part.

It would also be the correct technology for most sites - you don't need fancy Javascript for just the contents.

Navigation, ads, etc., maybe, but not the contents itself. Most webpages could be perfectly useful with Javascript completely disabled.

Sadly, many aren't.

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#402

Earlier quoted context omitted.

The plane landed and didn’t blast enormous holes with ejected compressor blades. That’s a successful failure.

Is that what happenes when The fan blades fly off and hit the airplane?

Most of the "skin" of a plane is only a few mm thick [0] it doesn't take much to puncture, I mean, it does, but thin turbine blades made to resist birds impact at 10k rpm would cut through it like butter.

[0] https://aviation.stackexchange.com/questions/45566/how-thick...

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#403

Earlier quoted context omitted.

I've tried to find a non-clustering pseudo-random function. Anybody knows the name or urls of those?

Maybe quasi-random is what you are looking for? https://www.gnu.org/software/gsl/doc/html/qrng.html

There’s the (descriptively named) “low-discrepancy sequence”, the most famous one being the Sobol sequence.

https://en.wikipedia.org/wiki/Low-discrepancy_sequence

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#404
Not long ago, an airplane rained down a few parts near Denver. Today an aircraft has a similar thing happen.

Is it possible that airplanes that have been grounded for a long time thanks to the pandemic have not received the care they should have?

The two aircraft did not have the same cause and I think different parts came lose but one of the results were similar. And somewhat close together

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#405

Earlier quoted context omitted.

Beware of the dangers of preventative maintenance, where sometimes while replacing or inspecting or re-mounting inspected parts, the maintenance crew breaks something that was OK and probably going to be working fine for years. But yeah, a D check is so expensive I've heard there's a habit of dumping the aircraft on less observing flying companies some thousand miles before it comes up...

A minor point, it's not based on miles, but cycles (takeoffs/landings) for structural parts or hours for engines.

You're right, thanks for the correction.

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#406
post #121

Earlier quoted context omitted.

I thought it was 'confined' if the containment ring did its job? If it had failed (like not supposed to) it would have been a whole lot worse.

The plane landed and didn’t blast enormous holes with ejected compressor blades. That’s a successful failure.

Plenty of youtube videos of a blade-off test - here's a short one [0] of an A380 Rolls Royce engine testing. That's about £9,000,000 of engine being destroyed in this (successful) test.

[0] https://www.youtube.com/watch?v=5-8_Gnbp2JA

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#407

Earlier quoted context omitted.

Ugh look up QF-72 for an A380 Rolls-Royce engine containment failure...

Are you sure? That was an A330, and a failure on one ADIRU.

Aaaaaah always mixing this and QF-32 :-( sorry. The book by Richard de Crespigny is a must read if you can find it. Great.

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#408

Maybe a system for emergency detaching of the failed engine with a parachute would help aleviate the consequences of flying with a uncontrollably vibrating fireball?

Oof. I would not want to be the bystander whose house an entire engine fell on, even with a parachute haha

Reading this, my mind went straight to Donnie Darko

https://www.rottentomatoes.com/m/donnie_darko

Re: United B772 at Denver on Feb 20th 2021, engine inlet separates from engine

#409

Not long ago, an airplane rained down a few parts near Denver. Today an aircraft has a similar thing happen. Is it possible that airplanes that have been grounded for a long time thanks to the pandemic have not received the care they should have? The two aircraft did not have the same cause and I think different parts came lose but one of the results were similar. And somewhat close together

It might be that Denver has more frequent failure. Takeoff power is scaled by temp, altitude, and cargo weight.

Denver is high altitude. And a hub with lots of long range flights. The plane was going to Hawaii. I bet plane was heavy with engines near full power. Most likely time for engine explodey

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