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LifeSunDeath posted:Not sure if posted recently. How does this happen, why isn't there an emergency brake or something? There is a breaking system and that is what is failing. Once you get something that heavy moving at any reasonable speed, the force it takes to stop it again is enormous! And even if you could somehow try and jam some part of it with a big peice of steel, all of those parts are moving so fast that ether your giant peice of steel would sheer in half as soon as it touched something, or large parts of the ship would break even more once contact was made.
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Nov 24, 2015 02:58
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LifeSunDeath posted:Not sure if posted recently. How does this happen, why isn't there an emergency brake or something? There isn't an emergency break because the whole point of having anchors is that they can be dropped quickly in an emergency. The anchors are, in a way, the ship's emergency break!* *assuming you've already slowed down a bit. There are systems in place to keep the anchor from doing that when you don't want it to, you know, go down (chain stoppers, chains and claws, poo poo just having the drat thing clutched in) but obviously these needs to be removed before you can drop the anchor. The guy running the brake (yellow shirt) let it run out on him, or the brake failed. It's rare, but it happens. As for the chain detaching altogether, that's supposed to happen, having the bitter end let go cleanly really is the best case scenario in that situation. Because nobody wants the chain locker bulkhead to fail instead. That being said yellow jacket there should have been wearing safety goggles, so there's a nonconformity to write up.
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Nov 24, 2015 05:23
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IndianaZoidberg posted:There is a breaking system FrozenVent posted:There isn't an emergency break You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though.
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Nov 24, 2015 06:12
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Some of the Sheep posted:You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though. looks like the breaking system worked just fine tbh
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Nov 24, 2015 06:22
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If you ever had a chain (or necklace or w/e) and knocked a little bit off the edge of a table or desk you'll notice it gains a lot of kinetic energy really fast https://www.youtube.com/watch?v=oia-AnIaIK4 starts at 22 seconds Modest Mao fucked around with this message at 06:29 on Nov 24, 2015 |
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Nov 24, 2015 06:24
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Modest Mao posted:If you ever had a chain (or necklace or w/e) and knocked a little bit off the edge of a table or desk you'll notice it gains a lot of kinetic energy really fast Trigger warning for portrait mode
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Nov 24, 2015 06:56
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The brake seemed to apply differently at different parts of the drum. Like he'd get it set right, and half a turn later it'd stop. Then he'd open it up, it'd suddenly be too open, and kablammo Like it was off centre or not properly round (worn?)
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Nov 24, 2015 07:25
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Some of the Sheep posted:You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though. 
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Nov 24, 2015 11:52
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simplefish posted:The brake seemed to apply differently at different parts of the drum. Like he'd get it set right, and half a turn later it'd stop. Then he'd open it up, it'd suddenly be too open, and kablammo You can see the guy in the yellow jacket opening and closing it - it's that big wheel he's turning. That's how it's done when you want to lower the anchor on the brake (e.g. Without using power) without having it run away, say if the water is pretty deep or the ship is still moving at a good clip. Then at the end he either waited too long and it took on too much speed, or he opened it too wide and the brake band came off the screw (hey it's been years, gently caress if I can remember all the parts of a windlass) or the brake lining just plain old failed. The brake on those thing is a big band of metal with a liner that wraps around the drum on one side, in that video looks like it's on the left, and the clutch and motor would be on the side we can't see, I think. Some of the Sheep posted:You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though. It's called autocorrect. gently caress off.
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Nov 24, 2015 13:06
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Right, I get that, but at, for example, 24 seconds, yellow jacket turns the brake, it moves and stops without him turning it, then he turns some more. I have realised that it is the links going over the edge that is causing this on/off effect. Perhaps he was scared of it and ran it too slow so he had to do it practically link by link? Still, you'd think there'd be a brake amount that allowed it to keep itself turning but stopped it running away
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Nov 24, 2015 13:31
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I'm sure this has been posted but it's relevant https://m.youtube.com/watch?v=b7pRfix_sNg (Chain starts moving at 3:09) Note the rust cloud, sparks, and the bad boy whippin' round at the end
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Nov 24, 2015 13:38
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simplefish posted:Right, I get that, but at, for example, 24 seconds, yellow jacket turns the brake, it moves and stops without him turning it, then he turns some more. The chain will often stop on its own in the earlier stages, the whole thing isn't exactly well lubricated, usually. I'm surprised nobody's walking around with a sledge hammer. It's also a friction brake, so it takes a while to stop sometimes. simplefish posted:I have realised that it is the links going over the edge that is causing this on/off effect. Perhaps he was scared of it and ran it too slow so he had to do it practically link by link? Either that or the water is really deep and he didn't want what happened to happen. The on/off effect is the chain getting stuck somewhere - spurling pipe, gipsy, hawsepipe, whatever... It always does that. Then when there's enough chain in the water gravity takes over and it doesn't. That's where they lost control. simplefish posted:Still, you'd think there'd be a brake amount that allowed it to keep itself turning but stopped it running away It's a friction brake, doing that will wear out the liner super fast. Also heat up the joint something fierce, possibly melting poo poo if you do it long enough.
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Nov 24, 2015 13:42
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simplefish posted:Still, you'd think there'd be a brake amount that allowed it to keep itself turning but stopped it running away Each additional link that goes overboard adds to the weight of chain hanging off of the brake. So, in order to lower the chain at a constant rate, the brake would have to continuously increase its resistance in proportion to the continuously increasing weight of the chain. There are painted/marked links in the chain that have a meaning like "if you let the chain go past this link, you are in danger of exceeding the ability of the brake to stop it" and another one that means "if you see this link go by, open the brake and just let the chain go because otherwise your'e probably going to rip the brake right out through the side of the ship, oh and you will die during this process."
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Nov 24, 2015 19:45
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Explosionface posted:Also, it's really weird for me to see railroad ties made from anything other than wood. That's sort of a requirement for high-speed rail. As is welding the rail segments together, on standard lines that's typically only done at crossings.
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Nov 24, 2015 20:14
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Phanatic posted:That's sort of a requirement for high-speed rail. As is welding the rail segments together, on standard lines that's typically only done at crossings. But why would coal and oil need to go that fast? 
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Nov 24, 2015 20:29
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Some of the Sheep posted:You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though.
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Nov 25, 2015 00:08
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best part is that I misspelled it too initially...puppet master.
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Nov 25, 2015 01:11
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FrozenVent posted:It's called autocorrect. gently caress off.
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Nov 25, 2015 01:48
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FrozenVent posted:It's called autocorrect. gently caress off. Autocorrect ain't forcing you to hit the post button
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Nov 25, 2015 02:48
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Some of the Sheep posted:You two retards quoted the correct spelling and still went on to gently caress it up. The system did break though.
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Nov 25, 2015 03:08
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https://www.youtube.com/watch?v=e-slDDFNdx8 I mean what did they expect? I was actually doing an inspection on a stack earlier this week and talking to one of the guys from the chimney company about how you actually get rid of one. I guess explosives are not worth it because of the red tape involved. So he told me they use this machine that sits on the stack and demolishes it inward and rides down. Seemed pretty neat but I wanted to learn more, and sometimes I love google, because "machine that rides down a smokestack to demolish it" gave me this result: http://www.citizen-times.com/story/news/2014/01/14/duke-starts-demolishing-old-smokestacks/4467151/ neat.
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Nov 25, 2015 05:29
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The Mantis isnt terribly exciting to watch though. https://www.youtube.com/watch?v=HPmnJ11znOY
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Nov 25, 2015 05:45
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FrozenVent posted:It's called autocorrect. gently caress off. Pretty sure most phone dictionaries contain the word "brake"
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Nov 25, 2015 07:47
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Elendil004 posted:https://www.youtube.com/watch?v=e-slDDFNdx8 I know he's been posted here before but Fred Dibnah demonstrates here how you demolish a chimney without explosives: https://www.youtube.com/watch?v=0L1WOnR2KBY 3:40 for the start of the process, 7:20 for the money shot.
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Nov 25, 2015 08:41
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Can we all just take a brake from this spelling discussion?
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Nov 25, 2015 13:35
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Have you guys ever had one of those OSHA-at-home moments where you touch a break rotor too soon after driving your car and you need to take a brake to get some aloe?
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Nov 25, 2015 14:20
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zedprime posted:Have you guys ever had one of those OSHA-at-home moments where you touch a break rotor too soon after driving your car and you need to take a brake to get some aloe? Yes, after driving my dad's car and braking hard over and over to figure out which wheel was causing the squeak. Dumbass.
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Nov 25, 2015 15:27
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zedprime posted:Have you guys ever had one of those OSHA-at-home moments where you touch a break rotor too soon after driving your car and you need to take a brake to get some aloe? Terrible.
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Nov 25, 2015 15:37
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Platystemon posted:
I'd rather take this circular saw through the gullet than spend one more god damned minute with Nancy. edit: not shown... the Chinese LWB version.
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Nov 26, 2015 04:05
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I really want this book now, these are amazing. http://amzn.com/0609608010
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Nov 26, 2015 04:48
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zedprime posted:Have you guys ever had one of those OSHA-at-home moments where you touch a break rotor too soon after driving your car and you need to take a brake to get some aloe? I used to spend a lot of time at race tracks working on cars and have put edge of rotor shaped burns on the inside of my forearms more than once. Protip- always wear long sleeves and pants and gloves when working on a hot race car.
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Nov 26, 2015 05:28
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Nov 26, 2015 09:53
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https://www.youtube.com/watch?v=E1QNZGR0uYI
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Nov 26, 2015 11:05
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Leaks from season six of Game of Thrones with no spoiler alert? For shame
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Nov 26, 2015 12:09
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That is one lucky goddamn catch.
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Nov 26, 2015 23:47
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I wish I could make it so while the snow falls, there's still snow on the roof, and that he keeps trying to walk up but keeps falling down.
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Nov 27, 2015 00:25
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Hexyflexy posted:I think this is the only time I've felt a quote from Anansi Boys is appropriate; Saved by the buoyancy of citrus: https://www.youtube.com/watch?v=ZC-4tWx5Gv4
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Nov 27, 2015 01:17
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Nov 28, 2015 16:21
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be careful, Mr Trump!
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Nov 28, 2015 16:52
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| # ? Jun 3, 2024 10:48 |
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From the schadenfreude thread, one of the most hair raising videos I've ever seen. No violence, no death or serious injury, but it took my breath away.
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Nov 28, 2015 16:57
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