@Shalvenay 'Sup?

kinda wondering at what point it'd just have been cheaper to charter a plane for the mismanaged dead-heading flight crew that set off the whole United incident with poor ol' Dr. Dao getting dragged off the plane

It would've been a lot cheaper if they'd just done what most airlines do: offer a larger and larger sum for people to take a later flight. Someone would have eventually taken the deal. They didn't try that at all. They just asked for volunteers afaik. No offer of cash, or at least much cash.

that too

@Shalvenay Have you noticed how quick the NTSB announced a cause for that Southwest accident? In less than 24 hours they publicly announced it had thrown a fan blade and there was evidence of fatigue cracking on the part that remained.

I'm curious to find out if the passenger that died was wearing her seatbelt. Might've made a critical difference

@TomMcW for preliminary information, that is a fairly quick turn -- makes me think the evidence there is quite strong

however, that's only one puzzle piece

@Shalvenay Fatigue cracks seems like a pretty solid explanation. The rest is really just bad luck. When an engine throws a fan blade it's a matter of what it hits. Get a piece of titanium alloy flying around at high speed it's going to take some stuff with it. Looks like it took out the entire cowl and unfortunately some part hit the window.

@TomMcW yeah, uncontained engine failure is aerial Russian roulette

It all boils down to a tiny crack.

@ymb1 You around?

also, grr.

I recall there was a mishap in the UK several years ago where a light twin had an engine basically rip out of its mounts, forcing the pilot to make an emergency landing

but I can't find the AAIB reporting on it

it was of a low-wing type IIRC, either a Piper or a Beechcraft

can someone help me find it?

@kevin good question, i did not spot that. I brought it up because it is flagged and it won't go in the review queue

hi @TomMcW

@ymb1 I can't remember what I was going to ask you. :/ I guess I was getting too sleepy

@Federico I'm fine with deleting it.

@ymb1 Feeling pretty good about myself right now, though. I managed to steal a few rep from PK

Do you think there is an appreciable pressure difference above a wing, vs some other random point along the fuselage? I'm wondering if the lady who was sucked out of the SW flight faced a bigger force because she was above the wing?

@abelenky I doubt at window level there's much difference. Rapid decompression through such a small opening is going to create an awful lot of force. There was a guy in a DC-10 once that was actually pulled all the way out of the plane through a window.

She was sitting toward the back of the wing. What gets me is the passengers tried to seal up the hole by jamming stuff in it. Seems like people would realize that would be futile

@TomMcW Yes, I might agree. But at that altitude, in that situation, with a person several injured, I will say that people tried to do that the best they could do.

@Farhan Yeah, they were understandably concerned with the hole. It just seems that most people would be inclined to want to stay away from it. Which would be the best choice. Obviously they would have to remove their seatbelts and oxygen masks to approach it. I'd be inclined to think there was nothing to be done about the hole. Just stay in your seat with your mask on and tighten your seatbelt

@TomMcW the bridge question?

(Y)

i remember you explained it here, IIRC had to do with the bridge's angle of attack, the wind increasing it, it stalling, and repeat, right?

@ymb1 That's the one. PK's answer was the accepted.

I stole his favorite word too: eigenfrequency

@TomMcW :P aviation.stackexchange.com/search?q=user%3A1961+eigenfrequency

@ymb1 Lol. He likes that word a lot! And don't let him catch you spelling it "phugoid."

got another 'announcer' badge without sharing anything aviation.stackexchange.com/help/badges/59/… I think I know what's happening, that's my guess: meta.stackexchange.com/q/295575 i checked the badge's stats here on av.se, and we too had a spike since ~june 2017

@ymb1 One more and you have to start speaking like Howard Cosell

had to look that up :D

@ymb1 I'm showing my age :)

@ymb1 If you wanted to make a do-it-yourself wind tunnel and make an airfoil to put in it, how would you go about getting pressure readings at specific locations on the airfoil?

simple

pitot tube galore

:P

@ymb1 That'd be nice. You suppose Thales will send me about 50 of em, just for research? :D

I think 50 pitot tubes are not a big deal if you have a wind tunnel :P

@ymb1 There are several web sites with plans for making a small, homemade wind tunnel. Just thought it would be cool to make one. Cool in aeronerd kind of way