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Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by umvi on Thursday June 13, 2024 @09:09AM (#40669193)
Not as scary as flying upside down which is what I originally thought based on title alone. Most people are familiar with "barrel roll" but by comparison this just looks like wiggling.

Counterintuitively though my understanding is that barrel rolls are generally safe even for large planes since it's a stable 1G maneuver (some jock irresponsible air force pilot used to regularly barrel roll B-52s until he did one too low and killed himself and the crew)...

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by agurk on Thursday June 13, 2024 @09:45AM (#40669559)
I'm not aware of a B-52 being crashed in a barrel roll, but this did make me think of the 1994 Fairchild crash[0] that was caused by a pilot who was known as dangerous due to excessive self confidence. In this case he banked too tightly at low level causing a stall into the ground. The whole crash was caught on camera[1], which is indelibly burnt into my memory.

[0] - https://en.wikipedia.org/wiki/1994_Fairchild_Air_Force_Base_...

[1] - https://theaviationgeekclub.com/the-story-of-bud-holland-the...

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by umvi on Thursday June 13, 2024 @11:30AM (#40670884)
Thanks, my mistake, this is what I was referring to. Apparently "Bud" would brag about "rolling" B-52s (https://www.historylink.org/File/8716), but the fatal crash was actually just a low-altitude stall as you pointed out. It's now a textbook case study for systemic leadership failure.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by chipdart on Thursday June 13, 2024 @10:56AM (#40670505)
Dutch roll, Bud Holland... Netherlands trifecta is in play.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by neuronic on Thursday June 13, 2024 @10:27AM (#40670128)
The last 3 seconds of your life as the copilot must have been some revolting emotion knowing that the overconfident asshole in the seat next to you just killed you.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by dylan604 on Thursday June 13, 2024 @10:11AM (#40669899)
Man, that is just one big ass airplane to even consider wanting to do any kind of maneuvering without threat indicators blinking/buzzing/beeping/toning that your death is imminent without doing some of that "pilot shit".

The story from your [0] about one of the crew's last flight with his family on the ground waiting for the post-flight rituals where his wife and 2 kids watching is just horrific. What a fucking asshat of a person.

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by MaxfordAndSons on Thursday June 13, 2024 @10:22AM (#40670051)
I'm pretty sure that's the crash GP was referring to. It sort of looks like he could have been going into a barrel roll.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by rob74 on Thursday June 13, 2024 @09:28AM (#40669402)
AFAIK only one Boeing passenger jet ever performed a barrel roll (without passengers on board): https://simpleflying.com/boeing-707-barrel-roll-seattle/
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by FabHK on Thursday June 13, 2024 @10:07AM (#40669837)
> it's a stable 1G maneuver

It’s positive G, but 0.5 up to 2G (otherwise, given that lift is “towards the ceiling of the plane”, so not always straight up during the manoeuvre, you’d accelerate downward, and arresting the fall requires >1G).

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by wyldfire on Thursday June 13, 2024 @09:35AM (#40669464)
> barrel rolls are generally safe even for large planes since it's a stable 1G maneuver

Maybe "safe" here means that merely the stress of the maneuver itself wouldn't destroy the craft? But surely the loss of lift is likely to put it at significant risk, as in your example.

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by MeImCounting on Thursday June 13, 2024 @09:46AM (#40669575)
You dont lose lift in a barrel roll, you merely change the direction that lift is being generated.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by kqr on Thursday June 13, 2024 @10:52AM (#40670447)
When the threat is the ground, maybe that's what's worrying anyway.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by wyldfire on Thursday June 13, 2024 @12:27PM (#40671667)
Ah, good point ;)
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by throwup238 on Thursday June 13, 2024 @09:38AM (#40669497)
That depends on what you mean by “generally safe”. Airline jets are not made to withstand the forces of an aerobatic maneuver and while they can do it in test flight conditions, each time requires pulling the jet out of service afterwards for a full structural inspection.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by psunavy03 on Thursday June 13, 2024 @10:07AM (#40669849)
A barrel roll is a 1-G maneuver and will not overstress an aircraft unless done improperly.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by FabHK on Thursday June 13, 2024 @10:16AM (#40669955)
Up to 2 or 3G, but most aircraft should withstand that, even gliders.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by zh3 on Thursday June 13, 2024 @10:10AM (#40669888)
Probably wasn't a B52. Tex Johnston was reknowned for barrel rolling a 707 during a demo back in the day - there's grainy video of it on youtube. Apparently the Boing execs at the demo didn't know it was going to happen and nearly had heart attacks when he did.

Video on youtube: https://www.youtube.com/watch?v=iz1Eze3QrDU

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by FabHK on Thursday June 13, 2024 @10:24AM (#40670076)
Bob Hoover rolled a plane while pouring a tea.

https://www.youtube.com/watch?v=V9pvG_ZSnCc

Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by kstrauser on Thursday June 13, 2024 @10:29AM (#40670145)
Tex flew in cowboy boots and, well, was named Tex. I don’t know what they thought would happen.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by fortran77 on Thursday June 13, 2024 @10:22AM (#40670055)
Tex Johnson
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by zh3 on Thursday June 13, 2024 @10:28AM (#40670132)
Thanks, corrected.
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by kevinmgranger on Thursday June 13, 2024 @10:28AM (#40670141)
A barrel roll or an aileron roll? Most people call an aileron roll a barrel roll (no thanks to Star Fox)
Re:Southwest Airlines Boeing 737-8 Max Experienced Dutch Roll by psunavy03 on Thursday June 13, 2024 @10:02AM (#40669784)
The Fairchild AFB crash was not a barrel roll.