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Nerses IV posted:One weird trick to figure out how many people your ladder can hold Should have worn don't-fall harnesses.
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Mar 18, 2018 14:51
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That's some fuckin' ace pilotage, right there.
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Mar 18, 2018 14:58
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And here we see why you keep the throttle pinned when landing on a carrier
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Mar 18, 2018 14:58
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FANG IIIIIIT!  So did that thing come in it too hot, or was it just a nightmarish failure of equipment? Nerses IV posted:And here we see why you keep the throttle pinned when landing on a carrier Ah, I see. Nightmarish failure of equipment then.
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Mar 18, 2018 14:59
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I wish it went on a little bit longer so you could see those two dudes at the end high-five e: magimix posted:Ah, I see. Nightmarish failure of equipment then. He still could have been too hot I guess, you only floor it once your wheels hit the deck. I don't know much about carriers though Also judging by the way those guys start running to where the cable whipped, somebody probably still had a real bad day Nerses IV fucked around with this message at 15:05 on Mar 18, 2018 |
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Mar 18, 2018 15:00
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This shits the pants.
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Mar 18, 2018 15:26
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Great just great now I can never complain about that happening in movies ever again. "It's unreali- oh. okay."
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Mar 18, 2018 19:16
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The start of the video is great https://www.youtube.com/watch?v=RbFHWtGi-7M
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Mar 18, 2018 19:21
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^ The cameraman says something along the lines of "last/final time". I think he was right!
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Mar 18, 2018 20:34
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Nerses IV posted:One weird trick to figure out how many people your ladder can hold ... securely attached to their shovels.
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Mar 18, 2018 22:25
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https://i.imgur.com/SRFETNY.mp4
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Mar 18, 2018 22:26
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Ak Gara posted:Great just great now I can never complain about that happening in movies ever again. Yeah the cable snapping/failing is a real scenario that happens rarely but it does. I'm pretty sure the protocol for every single carrier landing is once you hit the flight deck you actually max throttle the gently caress out of engine and the cable is designed to stop the craft even when gunning the engine. The idea being if the cable does fail you might actually be able to pull up and fly away and not hit the water when you careen off the flight deck.
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Mar 18, 2018 22:48
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Bum the Sad posted:Yeah the cable snapping/failing is a real scenario that happens rarely but it does. I'm pretty sure the protocol for every single carrier landing is once you hit the flight deck you actually max throttle the gently caress out of engine and the cable is designed to stop the craft even when gunning the engine. The idea being if the cable does fail you might actually be able to pull up and fly away and not hit the water when you careen off the flight deck. Or if you miss the cables. Have there been any studies on the effect of going from a four cable setup to three?
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Mar 18, 2018 22:55
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BgRdMchne posted:Or if you miss the cables.
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Mar 18, 2018 23:00
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Bum the Sad posted:Yeah the cable snapping/failing is a real scenario that happens rarely but it does. I'm pretty sure the protocol for every single carrier landing is once you hit the flight deck you actually max throttle the gently caress out of engine and the cable is designed to stop the craft even when gunning the engine. The idea being if the cable does fail you might actually be able to pull up and fly away and not hit the water when you careen off the flight deck. Yep. You want the engine to be at full power at the moment your wheels touch because, in the event of a broken cable or a failed trap, half a second might be the difference between a successful go-around and ditching in the ocean. Fun fact: early jet engines were very temperamental and difficult to keep lit, and one of the surest ways to cause problems (flameout, engine fire, compressor stall, etc) was to advance the throttle too quickly. In early cold war jets you might have to slide the throttle forwards slowly over 10 seconds or more to safely move from idle to full power. Obviously this was not suitable for a carrier landing -- so early carrier jets would have huge flaps and enormous speedbrakes all over that would allow them to decelerate while keeping the engine at 100% throughout the whole approach 
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Mar 18, 2018 23:10
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That's pretty awesome.
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Mar 18, 2018 23:14
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https://i.imgur.com/MPfOcVx.mp4
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Mar 19, 2018 00:23
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and...what's the problem here, exactly?
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Mar 19, 2018 00:31
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 I am sure there is a reason for that and not just an interesting way to assistante someone.
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Mar 19, 2018 00:33
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That's the 10-second-video version of the definition of a "topper" that I first heard explained to me about 20 years ago. I can't remember the reason, but some trees need to have their tops cut off before cutting down the whole thing. The topper is the person on the logging crew that climbs up and amputates the upper few metres. From memory, it's one of the higher-status jobs on a crew, you need some specialized training and equipment and you don't have to do some of the more unpleasant jobs.
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Mar 19, 2018 00:44
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ExecuDork posted:That's the 10-second-video version of the definition of a "topper" that I first heard explained to me about 20 years ago. I can't remember the reason, but some trees need to have their tops cut off before cutting down the whole thing. The topper is the person on the logging crew that climbs up and amputates the upper few metres. From memory, it's one of the higher-status jobs on a crew, you need some specialized training and equipment and you don't have to do some of the more unpleasant jobs. Unpleasant? Like having to climb a taller, more swingy tree?
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Mar 19, 2018 00:53
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Better than felling it without clearing the top, so tons of limbs get stuck in other trees and then fall randomly. They call them widowmakers for a reason.
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Mar 19, 2018 01:02
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Saw this construction peacock today. No gloves, no helmet, no vest, no boots, nothing. Also this bird had no idea how to use a level.
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Mar 19, 2018 01:32
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Baronjutter posted:Saw this construction peacock today. No gloves, no helmet, no vest, no boots, nothing.
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Mar 19, 2018 01:34
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jesus christ lady keep your head in the loving car  Back of the envelope math has him more than 200 feet up that tree.
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Mar 19, 2018 02:52
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Meanwhile, I can never get one of those drat saws to cut through anything thicker than my wrist.
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Mar 19, 2018 03:07
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Gorilla Salad posted:Meanwhile, I can never get one of those drat saws to cut through anything thicker than my wrist. He's just finishing with that saw - otherwise why is he lugging his chainsaw all that way up.
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Mar 19, 2018 03:15
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I'm impressed with how steady that video, and by implication the climber, is.
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Mar 19, 2018 03:16
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I like the chick at the other end of the car, hauling the dude back to his seat as he's trying to get up and look too
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Mar 19, 2018 03:18
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PetraCore posted:I'm impressed with how steady that video, and by implication the climber, is. Does getting used to that make you safer because you're steady, or less safe because you're getting complacent
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Mar 19, 2018 03:48
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Nth Doctor posted:Back of the envelope math has him more than 200 feet up that tree. Yep!
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Mar 19, 2018 03:51
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Zil posted:
trees get dangerous when they're tall, because people climb them and drop their tops and it could hit somebody. so people have to climb them to cut the top off before that happens
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Mar 19, 2018 04:01
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Nerses IV posted:And here we see why you keep the throttle pinned when landing on a carrier  The B52 looks like it's going down when it's actually in level flight because the wings are tilted up to facilitate greater lift during takeoff and allowing a big ugly fat gently caress to take off from shorter runways. I forget what the actual name of this tilted wing effect is though.
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Mar 19, 2018 04:25
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Nerses IV posted:At least they were wearing fall harnesses Should have been spring harnesses.
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Mar 19, 2018 04:49
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CannonFodder posted:Thankfully the carrier deck is actually rather high off the water. It's so high a B52 can fly below the flight deck. It's just called the angle of incidence of the wing. On takeoff, you normally rotate the plane (pitch it upwards) at some speed in order to increase the angle of attack, generating extra lift and hopping you up off the ground. The B-52 can't do this, because in order to clear the bomb bay (which needs to be in the middle of the plane for balance reasons), its landing gear is spread widely to the front and rear. It would take a lot more airspeed than desirable to rotate on the rear set of wheels, and even if it did there's a good risk of a tailstrike.  So the solution is to increase the angle of incidence of the wing, pointing it slightly upwards as noted, which gives it the lift it needs to just slowly rise off the ground without rotating. The downside is that in level flight the air hitting the top surface of the fuselage increases drag -- I assume that Boeing did the math and figured that it was worth it. Related: the F-8 Crusader carrier-borne fighter had a variable-incidence wing which could be jacked up for takeoffs and landings and then pulled back down into the fuselage at higher speeds. This has the same effect as the B-52 wing, but it's primarily meant to improve visibility -- you can hold the high angle of attack required for landing while keeping your nose pointed down, letting you more easily see the carrier's flight deck. 
Sagebrush fucked around with this message at 05:36 on Mar 19, 2018 |
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Mar 19, 2018 05:23
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https://www.youtube.com/watch?v=NPGq7IYQHCM The normally land based B-25 Mitchel taking off from the Hornet, a ww2 carrier to firebomb Tokyo.
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Mar 19, 2018 05:24
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~how an airline pilot sees this~ PF: missed approach. set power, flaps one notch up...max power PM: positive rate PF: gear up PM: flight guidance set PF: checked PM: acceleration height PF: flaps up, climb power, after takeoff checklist ... PF: sheesh PM: yah
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Mar 19, 2018 05:28
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Speaking of the F-8 Crusader there is more than one incident where a pilot took off and flew for an extended amount of time without unfolding its wing tips. http://www.mofak.com/Night_Infamy.htm Picture inside. Not great for the plane flying without its normal structural loading. quote:It all ended after about a point 5 hour of flight time when the plane was landed safely into the arresting gear with the wings still folded and standing at attention. Hundreds of hours of structural repair was required by Juan Lara, Jon Kirkwood and others in the Death Angel Metal Shop before DB 5 was once again flyable.
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Mar 19, 2018 05:56
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I found this in an old “gently caress-up Friday” on Reddit.com/r/AskEngineers.DoctorWhoToYou posted:I worked for a small waterpark that had a wavepool. Platystemon fucked around with this message at 06:32 on Mar 19, 2018 |
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Mar 19, 2018 06:30
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