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Big Dick Cheney posted:Am I missing something? This sounds very redundant It makes sense, and is pretty much the same issue that you have with self driving cars. Under normal conditions, the operator doesn't have to do much as the computer does the real work (and they are liable to become distracted or inattentive). Autopilot will only fail once poo poo has hit the fan, so at that point they have to instantly take the controls, determine what's going on, what's failed and how to fix it, and it's made even harder by the fact that they aren't given advance warning (because when failures occur under manual control, you're already in control, you already know the general situation and you might have seen warning signs beforehand). The phrasing was awkward, but to put it another way: automation makes the easy parts of flight even easier, but makes the hard parts of flight potentially much harder
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Nov 17, 2018 04:58
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sound on!
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Nov 17, 2018 05:17
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I don’t understand the train of thought that leads a driver to realise they might be overheight but instead of turning and seeking an alternate route, they go for a low‐speed crash.
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Nov 17, 2018 05:27
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why am i not even remotely surprised that they're russian
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Nov 17, 2018 05:27
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Sex Skeleton posted:It's crazy that the FCC automatically cancels an alarm under those conditions. If the AoA goes bananas like that I would expect the alarm to stay on, because regardless of whether the sensor is functioning there is something wrong and the pilot needs to intervene. If the AoA is okay then the pilot should be required to manually acknowledge the alarm. If the AoA is not okay then the alarm should clear when the AoA is good. But trying to be clever is just asking for trouble. So you want to sound the the stall horn when the AoA sensor is sending bad data. How is a pilot going to react to that? By putting down the nose. If the sensor is, as suspected, faulty, and the plane was actually flying level at the time, now it’s in a dive with a disoriented pilot. That’s not a situation that is survivable for long.
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Nov 17, 2018 05:31
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As a really dumb question, what would stop a half-full bottle of water from the galley being used as an ersatz backup AoA indicator?
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Nov 17, 2018 05:39
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Mandoric posted:As a really dumb question, what would stop a half-full bottle of water from the galley being used as an ersatz backup AoA indicator? The acceleration vector in airplanes does not always point down. https://www.youtube.com/watch?v=V9pvG_ZSnCc (Also angle of attack is the angle between the airflow and the chord of the wing, it's not a horizon indicator. You need something sticking out in the airflow to know what AoA is. AF447 had a perfectly functional artificial horizon, instead of looking at it and flying the plane they panicked.) Phanatic fucked around with this message at 05:50 on Nov 17, 2018 |
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Nov 17, 2018 05:42
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Phanatic posted:The acceleration vector in airplanes does not always point down. https://www.youtube.com/watch?v=zxfsP7Rcs-8
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Nov 17, 2018 06:04
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Phanatic posted:In normal law you can get an airspeed warning, but you won’t get a stall warning unless the aircraft has failed into alternate. Why? is this because as soon as you begin to stall it goes to alternate and then the warning goes off or are you saying the plane will not let you stall in normal mode? One thing they mention in the af447 is that they are very close to the limits of stalling because of the altitude. It seems like you could tell the plane to fly at a certain altitude or speed or aoa that would cause a stall while still operating in "normal" mode. Like, will the plane just not let you pull back the stick and reduce throttle or what? jamal fucked around with this message at 06:56 on Nov 17, 2018 |
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Nov 17, 2018 06:36
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jamal posted:Why? is this because as soon as you begin to stall it goes to alternate and then the warning goes off or are you saying the plane will not let you stall in normal mode? Normal mode is supposed to prevent you from stalling the airplane. If you were to make a control input that would result in a stall, the FCC will not accept that input. quote:One thing they mention in the af447 is that they are very close to the limits of stalling because of the altitude. It seems like you could tell the plane to fly at a certain altitude or speed or aoa that would cause a stall while still operating in "normal" mode. https://www.skybrary.aero/index.php/Flight_Control_Laws#Normal_Law quote:High Angle of Attack Protection, which protects against stalling and the effects of windshear has priority over all other protection functions. The protection engages when the angle of attack is between α-Prot and α-Max and limits the angle of attack commanded by the pilot's sidestick to α-Max even with full sidestick deflection.
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Nov 17, 2018 07:01
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Saw a heart wrenching video on liveleak today. Guy gets crushed between a small forklift and back of a pickup trying to stop the two from colliding. He dies in his friends(?) arms almost right away. One of those "holy poo poo I need to be more cautious" videos for sure because both vehicles are barely moving.
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Nov 17, 2018 07:38
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Forklift trucks take no prisoners.
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Nov 17, 2018 07:48
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cakesmith handyman posted:Forklift trucks take no prisoners. stabby up front, blunt force trauma on every other side
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Nov 17, 2018 08:08
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slow_twitch posted:Saw a heart wrenching video on liveleak today. I've seen a bunch of videos where people get crushed because they seem to expect a forklift to be something that you can easily manipulate, I guess if you work with them all day every day you probably get complacent. I work in the recycling industry and though incidents are relatively rare considering the number of man hours involved in operating them over the whole country, it still amazes me how frequently people get inside baling machines and then subsequently get smooshed because the machine was activated somehow. I guess it's a similar thing.
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Nov 17, 2018 11:36
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Yawgmoth posted:spent way too much time trying to figure out why the federal communications commission is dicking around with planes en route Well, airplanes are pretty common carriers.
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Nov 17, 2018 15:42
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A demonstration in flare usage https://i.imgur.com/sNJ0fJM.mp4
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Nov 17, 2018 17:18
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duz posted:A demonstration in flare usage She seems excessively calm
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Nov 17, 2018 17:33
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tactlessbastard posted:She seems excessively calm Not to mention she has beautiful hair. I am still wonder WTF she was doing lighting a flare from inside and throwing it out.
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Nov 17, 2018 17:52
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TerryLennox posted:Not to mention she has beautiful hair. I am still wonder WTF she was doing lighting a flare from inside and throwing it out. she needed rescue from her own stupidity
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Nov 17, 2018 18:00
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schmug posted:she needed rescue from her own stupidity Doesn’t look like it worked 
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Nov 17, 2018 19:46
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Nov 17, 2018 22:18
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that would be useful before a rough trail "if your vehicle can't clear this, do not pass"
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Nov 17, 2018 22:37
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smashmouth explode the eggs https://www.youtube.com/watch?v=qcAuVsX3dTg
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Nov 17, 2018 22:48
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I'm always astounded by just how strong an intact eggshell is.
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Nov 17, 2018 22:51
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Fender Anarchist posted:I'm always astounded by just how strong an intact eggshell is. Yup, try to crush one in your fist with no rings on.
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Nov 17, 2018 23:04
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i am very strong
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Nov 17, 2018 23:16
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slow_twitch posted:Saw a heart wrenching video on liveleak today. That's pretty much what happened to my cousin-in-law. http://concretepumping.com/topic/pump-operator-killed
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Nov 17, 2018 23:18
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stolen from the jiff thread https://i.imgur.com/DVVCKxd.mp4
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Nov 17, 2018 23:22
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Dillbag posted:stolen from the jiff thread
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Nov 18, 2018 00:13
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Dillbag posted:stolen from the jiff thread "...and that's how I contracted a roundworm transmitted through bird poop."
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Nov 18, 2018 01:31
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SENSUAL DAD KISS posted:I grew up a few blocks from the branch of the canal that was superseded by the Welland By-pass and then moved up near Pelham later on. The history of the canal is fascinating. For a particularly OSHA story, when they were building the bypass in 1967 some equipment ruptured a 24" natural gas pipeline that exploded and burned for hours. I've never been able to find footage or images of it, only old Welland Tribune articles about it, but I bet whoever did that had a bad day. Hell yeah, Niagara area goon!  Sweet video, haven't seen that one. I love taking walks out by the old (third) canal, behind the GM plant.
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Nov 18, 2018 01:50
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Bistromatic posted:This is exactly the kind of thing where i expect a "Man dies from rare brain parasite" headline in the local newspaper a few months later. Did this get listed in the thread? It's basically what happened to this guy after eating a slug. https://www.news.com.au/lifestyle/h...09d2dd92dfeaa8f
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Nov 18, 2018 03:03
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Dillbag posted:smashmouth explode the eggs I got a bit nervous when he was pulling the bowl out with a bare arm. The office dog enjoyed the experiment, at least.
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Nov 18, 2018 03:26
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https://i.imgur.com/yNNT27r.mp4
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Nov 18, 2018 03:49
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Cool to see a different angle: Memento posted:https://i.imgur.com/3Tez8J5.mp4
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Nov 18, 2018 03:55
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https://i.imgur.com/6g6zyaN.mp4
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Nov 18, 2018 04:29
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That’s not OSHA. That’s how to load those things.
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Nov 18, 2018 04:48
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I think that guy's side view mirror went into orbit. Serves 'em right.
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Nov 18, 2018 05:32
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duz posted:A demonstration in flare usage im the deposit card also im cancelling my card
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Nov 18, 2018 05:50
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Starting An F/A-18 On An Aircraft Carrier Is the point of touching everything the equivalent of kicking the tires? I'm not super sure what the point of it is beyond protocol or something.
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Nov 18, 2018 06:52
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