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Hekk posted:Can whatever you just said be broken down into terms someone who's never been on a ship could understand? I googled array and all I see is some crap about sonar detection for subs and poo poo. Yeah, a towed array is a sonar sensor that's pulled behind the ship; presumably they wanted to get a close listen to the other ship, since that's useful intel to have (... kind of, like ded said). Maybe other sensors on there as well, I dunno. You can't go too fast while you're towing it, though. What they did is kind of like being invited to the White House, and showing up wearing a backpack with a boom mic sticking out of it and an HD camera strapped to your head.
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Nov 13, 2014 04:43
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Wingnut Ninja posted:Yeah, a towed array is a sonar sensor that's pulled behind the ship; presumably they wanted to get a close listen to the other ship, since that's useful intel to have (... kind of, like ded said). Maybe other sensors on there as well, I dunno. You can't go too fast while you're towing it, though. What they did is kind of like being invited to the White House, and showing up wearing a backpack with a boom mic sticking out of it and an HD camera strapped to your head. Ok I think I understand a bit more. Thanks for the explanation.
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Nov 13, 2014 04:49
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Well I bet one thing they got for sure was a good SPL for 60hz.  60hz is the freq that US power runs at, 50hz is what most of the rest of the world uses
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Nov 13, 2014 04:55
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Wingnut Ninja posted:Yeah, a towed array is a sonar sensor that's pulled behind the ship; presumably they wanted to get a close listen to the other ship, since that's useful intel to have (... kind of, like ded said). Maybe other sensors on there as well, I dunno. You can't go too fast while you're towing it, though. What they did is kind of like being invited to the White House, and showing up wearing a backpack with a boom mic sticking out of it and an HD camera strapped to your head. Speed isn't generally restricted just because an array is out*. The speed limitation comes in because sonar performance is significantly degraded at higher speeds. Laranzu's boat speeding up was not becuase the chinese ship couldn't catch up with the array, it was because whatever data they collected in the process would be garbage. * For surface ships at least. Not 100% sure on some of the sub arrays.
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Nov 13, 2014 05:09
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ManMythLegend posted:Speed isn't generally restricted just because an array is out*. The speed limitation comes in because sonar performance is significantly degraded at higher speeds. The More you Know! I always thought it was for line/winch stress reasons. Either way they didn't want to catch up.
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Nov 13, 2014 06:14
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Laranzu posted:The More you Know! I always thought it was for line/winch stress reasons. Either way they didn't want to catch up. It's really just a matter of physics. The faster you go the higher the stuff you're dragging is going to be in the water. Can't hear properly if you're not at the right depth.
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Nov 13, 2014 06:16
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ManMythLegend posted:Speed isn't generally restricted just because an array is out*. The speed limitation comes in because sonar performance is significantly degraded at higher speeds due to higher background noise. Laranzu posted:The More you Know! I always thought it was for line/winch stress reasons. Either way they didn't want to catch up. All arrays are designed to have zero problems going up to flank speed. It would be really dumb not to, who knows when you need to make high speed evasive maneuvers? The quality of what you can hear however is full on poo poo due to how loud the water is rushing over the array + own ship noise. Depth isn't all that big of an issue, thermoclines 'help/hurt' but are nothing magical like they show in the movies. In fact those same thermoclines can help you hear really god drat far away due to convergence zones.
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Nov 13, 2014 07:37
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ded posted:All arrays are designed to have zero problems going up to flank speed. It would be really dumb not to, who knows when you need to make high speed evasive maneuvers? The quality of what you can hear however is full on poo poo due to how loud the water is rushing over the array + own ship noise. Sure sure. I was saying performance as in the ultimate result of the sonar equation(s), of which background and self noise as a function of speed are a large part. Edit: Not that I'm saying there's some ST in the corner running through sonar equation calculations, more I'm referencing the sonar equation as a mathematical expression of expected sonar performance given a set of conditions. ded posted:Depth isn't all that big of an issue, thermoclines 'help/hurt' but are nothing magical like they show in the movies. In fact those same thermoclines can help you hear really god drat far away due to convergence zones. Yeah depth of array is 100% dependent on where environmentals put the layers, and in which one you are trying to find your target. Then it's all about speed and array scope to get there. ManMythLegend fucked around with this message at 08:40 on Nov 13, 2014 |
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Nov 13, 2014 08:26
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ITT bubbleheads justifying their vocation. "Sounds sounds sounds BAD DRAGON DOT COM PURCHASES sounds" "Sounds sound SOOOUND soundssssssssss MY PENIS WON THE POPULAR VOTE sounds piiiinng piiiing"
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Nov 13, 2014 16:45
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 Russian flagships always impress me with their 80s supervillain vibe. Less so their layout, the quality of life on board, their missile tech that is essentially boiled down to "Hey, we got this airframe when we developed our jet fighter, let's just throw out the cockpit (the wings...) and put some inertial guidance + explosives in there", and their AAW/ASW FCS suite that was obsolete by the 1970s.
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Nov 13, 2014 16:52
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Angry Fish posted:
I am now convinced that they were the template for the Imperial Navy in Star Wars.
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Nov 13, 2014 17:35
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Its not that speed dictates how deep the array is on a surface ship as we can always pay more line out. Its the fact that water travelling over the array causes noise to blanket out anything quiet. Which makes having the array out during plane guard duty really cool and something you should definitely do if you want to annoy all the stgs as for some magical reason the array only goes out at night. Edit: Also ask me about JSM's MFTA adventure where we learn that the butt plug can hold the entire array with nothing on the drum! I think sonar owns bones and is under appreciated in the surface fleet but generally STGs are retarded and useless. This doesn't help that officers and non sonar guys don't understand the concept that it takes time for sound to travel or how range predictions are.... predictions. SPACE HOMOS fucked around with this message at 17:49 on Nov 13, 2014 |
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Nov 13, 2014 17:42
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SPACE HOMOS posted:Its not that speed dictates how deep the array is on a surface ship as we can always pay more line out. Its the fact that water travelling over the array causes noise to blanket out anything quiet. Which makes having the array out during plane guard duty really cool and something you should definitely do if you want to annoy all the stgs as for some magical reason the array only goes out at night. Bet that was a pants-making GBS threads moment.
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Nov 13, 2014 17:48
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SPACE HOMOS posted:
When I was doing that poo poo (SS not STG) I could get a 10 second range that would be within 500 yards or so using a simple formula, about 90% of the time. Officers on my boat generally had a decent grasp of how sonar worked, but sometimes they would go nuts over random poo poo (like boing fish) if they were JOs standing OOD.
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Nov 13, 2014 17:56
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ded posted:When I was doing that poo poo (SS not STG) I could get a 10 second range that would be within 500 yards or so using a simple formula, about 90% of the time. Officers on my boat generally had a decent grasp of how sonar worked, but sometimes they would go nuts over random poo poo (like boing fish) if they were JOs standing OOD. Before an exercise we'd drop an XBT and then run predictions and it would say we'd have a CZ out to 70kyds. So then the TAO in combat would get mad about us not seeing contacts at that range. Plus STGs have a bad habit of not knowing how to operate the hull mounted sonar (besdies b-scans) or evaluating contacts. I've seen people not know how to tell the difference between mounts or contacts and if surface contacts are opening/closing on A-scans. Not knowing how to use doppler, a-scans, or ping audio (there is a real big difference in the way a ping sounds off metal vs dirt) to tell if a contact is valid or not. Plus with the new stuff people would just set it to replay the last 15 pings at 10x and try to guess what was real that way. In general they rather bitch and moan declaring gently caress the navy then actually taking 30 minutes to learn how to do their job. orange juche posted:Bet that was a pants-making GBS threads moment. I noticed we stopped receiving towed array data, which wasn't uncommon for the test platform equipment to crash, so I restarted it. Noticed in the equipment room that data feeds were down and decided to check array. When I entered the space I looked at the wench and was like okay and started to leave but my brain went "wait a second, something is missing" so I did a double take and saw the tow cable was loving missing. Called the bridge told them to slow to 5 knots and they responded "lol this is a prank gently caress you". Ran to combat and told the TAO, ran to chief berthing and woke up stgc up. I was told later that my face was ghostly pale while running around trying to tell people what was going on.
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Nov 13, 2014 18:29
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SPACE HOMOS posted:Before an exercise we'd drop an XBT and then run predictions and it would say we'd have a CZ out to 70kyds. So then the TAO in combat would get mad about us not seeing contacts at that range. Did you ever try to explain to them how the stars must properly align for a cz (let alone a 2x or 3x cz) to work out? We found the Nimitz while doing an exercise against them on a 3x cz. It was an incredible demonstration on how when that poo poo works it's awesome.
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Nov 13, 2014 19:41
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ded posted:Did you ever try to explain to them how the stars must properly align for a cz (let alone a 2x or 3x cz) to work out? Actually over the marianas trench in the summer we'd get cz pretty often, it was just that it would be in a slim window and getting the ship to maintain a course so that the contact was always in that window is difficult. As for telling an officer how it worked, anytime I brought this up to our divo and lpo they'd say don't worry about it just put colorful pictures in a power point. Pretty sure I was told to shut up multiple times by our weps officer also. Edit: I guess I should say CZ while using active sonar. We did use our towed array but not as often and getting CZ on that is probably a lot harder. Thinking back every sonar exercise we did was mostly pinging away for a straight week and running in circles. Once while on a early morning watch I saw a thing I had never seen before on of our newer displays. It was a fast updating waterfall display that connected to a tiny array around the middle of the ship - measured upper MF to HF ranges (we could see dolphins feeding and talking on this). So I am sitting there watching this man-made HF pulse and thinking wtf so I took a screenshot. Later when the ship rider stgcs decided to wake up he flipped a wig and yelled at me for not waking him up to see it. In my defense the exercise ended and we had stopped going active. SPACE HOMOS fucked around with this message at 20:06 on Nov 13, 2014 |
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Nov 13, 2014 19:54
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Yeah, I never found CZ's that tactically useful. They're so fickle with respect to the bottom depth and contour that reliably exploiting one while maintaining a screen or as cordon was just not going to happen. More, it was knowing there was one out there modified my thought process on if the sub could hear us though because my going in assumption in every event was that their sonar was better, and they were better at using it then we were with ours. Not that CZ's aren't worthwhile. We definitely take advantage of them a lot for stuff. SPACE HOMOS posted:Edit: Also ask me about JSM's MFTA adventure where we learn that the butt plug can hold the entire array with nothing on the drum! lol. I was actually OOD when we lost our TACTAS on USS FIRST SHIP. That was what you call a "bad day".
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Nov 13, 2014 23:25
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LOL STGs talking greek. All of the non-STGs/CIC types have checked out. Homos, that STGC is a CMC now, yes? For every tail you gently caress up as an STG you get a star.
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Nov 14, 2014 01:49
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Anyone at Groton?quote:Groton town police are responding to an incident at the Naval Submarine Base New London in which someone deployed pepper spray, according to police.
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Nov 14, 2014 02:15
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poopkitty posted:LOL STGs talking greek. All of the non-STGs/CIC types have checked out. We had some divers come on board to get the tail up and it ended up being just CA div pulling it by hand. SHs got NAMs for giving the ship riders some sodas and STGs got toilet paper with letters of appreciation on them.
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Nov 14, 2014 03:13
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Sonar techs are smelly and weird. One time we caught one of them smoking spice in the NIXIE room. Whelp that's my sonar tech story. EDIT: Holy loving poo poo they also had a bad habit of draining my loving skid constantly because they were bad and dumb, gently caress sonar techs forever.
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Nov 14, 2014 03:16
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This is true. The A-school in point loma is full of stinky retards. I knew a guy who ate nothing but chef boyardee and smoked nonstop, his room smelt so loving bad. Our CA2 WCS used to play video games nonstop in nixie and piss out of the nixie tubes. Which skid? On the ship I was on we owned the skid below the deep mag (on a ddg). I don't know why but the drainage thing, I forgot the name of it, used to fill up and overflow all the time. We assumed there was a leak in the ECW system somewhere. SPACE HOMOS fucked around with this message at 03:25 on Nov 14, 2014 |
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Nov 14, 2014 03:20
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SPACE HOMOS posted:This is true. The A-school in point loma is full of stinky retards. I knew a guy who ate nothing but chef boyardee and smoked nonstop, his room smelt so loving bad. Our CA2 WCS used to play video games nonstop in nixie and piss out of the nixie tubes. On the cruiser I was on my skid (the computer/display skid) cooled a couple of their consoles and they always felt the need to gently caress with valves. Seriously every time it was empty I just walked up to control and looked under the deck plates. By the time I left the ship the sonar techs they had onboard were mostly normal people (including a normal girl!) but holy poo poo were the weird ones loving out there.
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Nov 14, 2014 03:25
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SPACE HOMOS posted:SHs got NAMs for giving the ship riders some sodas and STGs got toilet paper with letters of appreciation on them. gently caress supply forever.
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Nov 14, 2014 03:26
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Unless you're Filipino then you get all those hookups
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Nov 14, 2014 03:29
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STG's can be pretty weird. One of mine on my last ship didn't like "sandwhiches". Something about putting stuff between slices of bread just completely disgusted him.
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Nov 14, 2014 03:33
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Just landed in Chicago! Oh boy boot!
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Nov 14, 2014 03:34
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ManMythLegend posted:gently caress supply forever.
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Nov 14, 2014 03:37
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STGs are the retarded cousins of STSs.
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Nov 14, 2014 03:41
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LingcodKilla posted:Just landed in Chicago! Oh boy boot! Today was the first day it snowed in Great Lakes. Have fun.
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Nov 14, 2014 03:42
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LingcodKilla posted:Just landed in Chicago! Oh boy boot! Are you sitting quietly in the USO yet. Put your lighters and smokes into the bin.
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Nov 14, 2014 03:53
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LingcodKilla posted:Just landed in Chicago! Oh boy boot! Abandon all hope, all ye who enter here. See you in 8 weeks or so  DustyNuts posted:Are you sitting quietly in the USO yet. Put your lighters and smokes into the bin. This. Do this because otherwise you get to see them confiscate your poo poo and smoke it in front of you, after yelling at you for bringing contraband to great lakes
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Nov 14, 2014 03:54
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PneumonicBook posted:Today was the first day it snowed in Great Lakes.
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Nov 14, 2014 03:55
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Prepare for the first day to be a blur and then get lots of shots. You guys are forgetting they got rid of all the old "ships" and now have those all inclusive buildings where the bay, galley, and class rooms are all in the same building. Meaning he won't have to march in the cold that much.
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Nov 14, 2014 04:01
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PneumonicBook posted:Today was the first day it snowed in Great Lakes.
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Nov 14, 2014 04:01
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PneumonicBook posted:On the cruiser I was on my skid (the computer/display skid) cooled a couple of their consoles and they always felt the need to gently caress with valves. Seriously every time it was empty I just walked up to control and looked under the deck plates. Sonar Tech story time! Normal chick was cool, so were most of the dudes when I left. When I checked out to head back to the States in Dubai, one of the STG2's was walking back to the ship, and he was smashed and trying to pet some of the cats on the pier. He got bit and told me the next week over FB that he had a panic attack cuz he thought he was gonna get cat aids. He had to get a ton of shots. There was a definitely not normal female, we called her Corndog (only once accidentally to her face). She had a for real touch of the tism, like she would have these weird loving meltdowns and run out of quarters screaming, and she smelled bad, and she was kind of fugly, even for Navy standards. When she was cranking, she would lean against the bulkhead and her gunt would hang over her pants and make her look kind of like a corndog, which is where she got her nickname (duh). She had a habit of sleeping with dudes and spilling the beans about them at the wrong time. We were in Seal Beach right after she showed up to the boat, and she went out on the town with one of her co-workers, needless to say, they hooked up, and she let it drop during quarters the next morning how they went out, had some drinks (underage) and hosed on the beach, surprisingly enough, nothing ever came out of that, probably because everybody was scarred for life after hearing the details. There was a creepy hispanic TM2 turned STG2 on our ship that liked to bang out chicks that were the same age as his daughter. He got into a brawl over a CT chick with a deck seaman and got his rear end beat and busted down over it. He knocked up an STG3 a year later, not sure if he got in trouble over that one, I think they sent him IA, but not sure. One of the STG's told a female STG that he could smell her period blood in front of a small group of people on the smoke deck. Same chick got medsepped a few months later, she was dating another dude in their division, and he got booted for pissing hot. And to elaborate on the spice story: I was duty MAA the day the busted homeboy smoking spice in nixie. When we were searching the space we found a sketchbook full of characters from Family Guy loving each other. Apparently Brian had a massive dick  There were more loving weirdos, but thats enough for tonight, y'all probably stopped reading at the first paragraph anyways.
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Nov 14, 2014 05:11
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Christoff posted:Unless you're Filipino then you get all those hookups ManMythLegend posted:gently caress flips forever.
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Nov 14, 2014 05:13
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PneumonicBook posted:On the cruiser I was on my skid (the computer/display skid) cooled a couple of their consoles and they always felt the need to gently caress with valves. Seriously every time it was empty I just walked up to control and looked under the deck plates. As a girl ST who has served on a cruiser, my face right now.  What year?
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Nov 14, 2014 05:51
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FAT SLAMPIG posted:Anyone at Groton? http://www.courant.com/breaking-news/hc-groton-sub-base-police-20141113-story.html "The suspect, who was not identified, was not injured but two Navy civilian police officers were wounded by the ricochet of bullets."
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Nov 14, 2014 06:00
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