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

avherald.com

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

#151

Post by Sebb767 »

afavour wrote: post #123
wl wrote: post #120

Earlier quoted context omitted.

The same point could be made without sarcasm. Would you object, then?

Without the sarcasm it would just be restating exactly what the parent comment said. I agree with the OP: if we disapprove of posts that only say “same” or “me too” we should probably also discourage posts that dress exactly that in sarcasm.

> if we disapprove of posts that only say “same” or “me too” we should probably also discourage posts that dress exactly that in sarcasm.

I fully agree on this point, but the comment in question (sarcastically) criticized certain behaviours ("asking each other how they feel about every piece of news" and "making horrible puns at every opportunity"), so I don't think it fully falls under that threshold.

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

#152

Post by NikolaeVarius »

andrewflnr wrote: post #55
chrisseaton wrote: post #20

Earlier quoted context omitted.

They could go faster with a single larger engine. Why do you think they went with two engines instead of a single larger engine? Redundancy.

Citation needed. It's not at all obvious that a single huge engine is in any way better than two for a given speed.

This is basic aeronautical engineering. Barring the need for redundancy, turbofans are most efficient and quieter with larger intake sizes, the main limiting factor being fan tip speed.

This is the reason that the 737 had the MCAS stuff. They increased the size of the engine that caused ground clearance problems, which required shifting them.

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

#153

Post by NikolaeVarius »

pintxo wrote: post #59
xnx wrote: post #5

Earlier quoted context omitted.

Amazingly, I believe planes are designed/certified to do everything (e.g. take off fully loaded) with only a single working engine.

And if they loose the remaining one, all goes south: https://www.youtube.com/watch?v=zn1a2lSk_UI&feature=emb_logo

No, planes glide just fine. That plane simply did not have enough altitude, or lift considering the bank angle to recover

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

#154

Post by ptero »

secfirstmd wrote: post #54
IgorPartola wrote: post #25

Earlier quoted context omitted.

What, you don’t like the anchor people on TV asking each other how they feel about every piece of news and making horrible puns at every opportunity? Or having expected announcements be reported as BREAKING NEWS?

As a European who tuned in to US News for the US election I thought that was crazy. I'd watch a few of the right media orgs to see what they were saying and then stay on CNN/MSNBC etc for most of it. It's mad how so much of it every hour was essentially people just regurgitating stuff to fill the time. I mean OK what's happening is important but if you can't fill the airtime why not shift to other news (as in everyth…

If you want news on a hot button topic it is usually better to watch it reported from far away. Less attachment leads to more information and less spin.

Thus I would read US election news on European or Asian news sites, Brexit from Asia, etc. Just my 2c.

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

#156

Post by yread »

GekkePrutser wrote: post #135

That's crazy, in the Netherlands today there was another flight that dropped engine parts (much smaller though, they're said to have been turbine blades) that hit cars and people. It was also an airliner (747-400). Considering how rare an occurrence is, it's really weird to have both happen on the exact same day. https://www.airlive.net/breaking-turbine-blades-of-a-boeing-... By the way I'm surprised that fire keeps…

It could be oil that's on fire

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

#157

Post by gowld »

IgorPartola wrote: post #25
larkinrichards wrote: post #11

I really appreciate focused news sites like avherald. Just the facts, a collection of photos and videos, straightforward. The video of the landing & the passengers cheering—- that huge sigh of relief. Brings a smile to my face.

What, you don’t like the anchor people on TV asking each other how they feel about every piece of news and making horrible puns at every opportunity? Or having expected announcements be reported as BREAKING NEWS?

No, and we don't appreciate sarcastic imitations either, as that brings unpleasantness here while we are appreciating a better environment.

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

#158

Post by Dirlewanger »

just_steve_h wrote: post #65
Dirlewanger wrote: post #46

Earlier quoted context omitted.

One thing that sets software apart from other engineering disciplines is that they are grounded in physics (bits running on a semiconductor doesn't matter for this discussion) and have been around (in some form) for thousands of years. How do we know if a design is sound? We can check it by doing the math. How do we know if a program is sound (what does that even mean? There's our first problem)? Well, we rely on a l…

I'm wading into waters that are way over my head here, but my understanding is that it is possible for software to be provably correct, in the mathematical sense of "proof." I'm well aware of the admixture of folklore, experience, and caffeine-fueled inspiration that constitutes much of the software that runs our world.

I think being able to prove that a program can be correct is getting close to P=NP territory.

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

#159

Post by NikolaeVarius »

jakear wrote: post #102
infodocket wrote: post #26

You can hear the air/ground communications for this flight here via LiveATC.net. The pilots declare an emergency and then a mayday call beginning at 1:15 of the audio. https://forums.liveatc.net/index.php?action=dlattach;topic=1...

Curious, I had always heard it should be repeated 3 times, but here they’re consistently repeating just twice.

3 times is just to "ensure" it gets heard.

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

#160

Post by NikolaeVarius »

tshaddox wrote: post #40
mrfusion wrote: post #23

Earlier quoted context omitted.

How do you account for oceans?

Generally transatlantic jetliners have more than 2 engines, although I suppose that’s beginning to change.

This has not been true for a decade
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