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Babies Getting Rabies posted:Oh man, I hate it when the glue fogs up the canopy on my Revell set, too I used to use white glue
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# ? Nov 2, 2016 16:07 |
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# ? Mar 29, 2024 15:31 |
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Hexyflexy posted:I'm half thinking that the major thing they nicked was the flight control software, so they had to make it in a rough facsimile to allow that to be useful. It's the only reason I can think of to make it that shape, as you'd have to if you were using "borrowed" code, rather than going for something more like a Typhoon if you were doing it from scratch. I very much doubt they would be able to re-use stolen flight control software. Besides which, the fly-by-wire software is not the hard part of the F-35 software development. Similarities between the J-20 and other aircraft are more likely due to convergent evolution than anything else.
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# ? Nov 2, 2016 16:10 |
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Its ugly.
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# ? Nov 2, 2016 17:12 |
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Mortabis posted:I very much doubt they would be able to re-use stolen flight control software. Besides which, the fly-by-wire software is not the hard part of the F-35 software development. Hard part? No because we solved the problem of electronically compensating for inherently unstable platforms in the 70's/80's (thanks in part to that Neil Armstrong guy again). Significant cost driver? You betcha.
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# ? Nov 2, 2016 17:46 |
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Canadians should thank the Chinese. They actually built a modern Avro Arrow. E- maybe we'll buy some from them to protect their oil sands.
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# ? Nov 2, 2016 18:17 |
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Cat Mattress posted:Hey at least the J-20 actually flies. And I'm sure the pilot is able to actually see through the canopy. At least the canopy can close and not hit the pilot's helmet... Babies Getting Rabies posted:Oh man, I hate it when the glue fogs up the canopy on my Revell set, too I bet theirs has a lot of fingerprints burned in, too.
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# ? Nov 2, 2016 20:09 |
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Syrian Lannister posted:I used to use white glue This is the smart method. Things they don't explain to kids: model glue actually melts the plastic to bond it, which makes for a super thin bond but fog the gently caress out of your plastic transparencies. LostCosmonaut posted:It also looks like it's got a datalink on it similar to the F-35; A dumb question appropriate to this thread: when you say "datalink" what do you mean? Some sort of Fighter aircraft wifi that shares data between jets in flight?
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# ? Nov 2, 2016 21:24 |
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Nebakenezzer posted:A dumb question appropriate to this thread: when you say "datalink" what do you mean? Some sort of Fighter aircraft wifi that shares data between jets in flight? Basically, it's an encrypted link that can carry all sorts of things. It's great for situational awareness, because a bunch of fighters can each share their radar picture with each other, and share targets. https://en.wikipedia.org/wiki/Link_16 xergm fucked around with this message at 21:33 on Nov 2, 2016 |
# ? Nov 2, 2016 21:30 |
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More specifically, something like MADL: https://en.wikipedia.org/wiki/Multifunction_Advanced_Data_Link
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# ? Nov 2, 2016 21:57 |
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xergm posted:Basically, it's an encrypted link that can carry all sorts of things. It's great for situational awareness, because a bunch of fighters can each share their radar picture with each other, and share targets. Everything any nerd would ever want to know about link16: http://www.northropgrumman.com/Capabilities/DataLinkProcessingAndManagement/Documents/Understanding_Voice+Data_Link_Networking.pdf Fun fact the link 16 specification clocks in at ~10k pages.
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# ? Nov 3, 2016 00:01 |
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Babies Getting Rabies posted:I can't find the sources right now, but I remember reading that it's quite possible that the J-20 is only optimized for stealth only from front. If I remember it correctly, the thinking goes that the thing is way too big anyway, so it'll likely be armed with anti-ship weapons and the idea is to be stealthy from the front while flying towards a carrier group, unload the missiles and then run away. It's the size of an F-22. Mortabis posted:A better explanation would be that China would like to build a stealth fighter, but wasn't successful, and is unable to admit it due to a pathological need to save face. That's actually my theory on the Pak-Fa, which I still think is a well-dressed Flanker. Godholio fucked around with this message at 00:09 on Nov 3, 2016 |
# ? Nov 3, 2016 00:07 |
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Murgos posted:Fun fact the link 16 specification clocks in at ~10k pages. How the gently caress is that possible, especially if it only supports 256 messages?
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# ? Nov 3, 2016 00:25 |
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PittTheElder posted:How the gently caress is that possible, especially if it only supports 256 messages? It basically specifies what every single bit means for every single message. It's not like it's 10k+ pages of unique content, a lot of it is very long technical tables.
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# ? Nov 3, 2016 00:34 |
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Government contractors are the worst. You have to specify everything or they’ll deliberately do the wrong thing and bill you to change it. You can’t leave anything to common sense.
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# ? Nov 3, 2016 00:42 |
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Platystemon posted:Government contractors are the worst. You have to specify everything or they’ll deliberately do the wrong thing and bill you to change it. You can’t leave anything to common sense. It's not unique to government contractors. There are reasons that Scope of Work documents are written.
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# ? Nov 3, 2016 02:27 |
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Platystemon posted:Government contractors are the worst. You have to specify everything or they’ll deliberately do the wrong thing and bill you to change it. You can’t leave anything to common sense. The thing about link 16 is that there are a lot of vendors from a lot of counties and all the radios have to talk to all the other radios. US Navy radios have to talk to RoK Army for example. Every implementation is different but they all need to interoperate so you get insanely detailed docs.
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# ? Nov 3, 2016 03:02 |
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The US alone probably uses over a dozen different types of terminal. And within that, different platforms have different needs/capabilities. You don't want to waste bandwidth by sending a poo poo-ton of messages to users that can't process or display them, so there's a billion layers of complexity. Honestly I'm kind of surprised that document isn't longer.
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# ? Nov 3, 2016 03:34 |
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# ? Nov 3, 2016 03:43 |
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Nebakenezzer posted:A dumb question appropriate to this thread: when you say "datalink" what do you mean? Some sort of Fighter aircraft wifi that shares data between jets in flight? https://en.wikipedia.org/wiki/Link_16 https://en.wikipedia.org/wiki/Multifunctional_Information_Distribution_System
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# ? Nov 3, 2016 04:21 |
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CommieGIR posted:https://en.wikipedia.org/wiki/Link_16 A little late to the party.
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# ? Nov 3, 2016 16:59 |
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xergm posted:A little late to the party. Just now noticed. But you forgot MIDS JTRS/LVT I mean, technically its the same thing, but I just wanted to be part of the party CommieGIR fucked around with this message at 17:05 on Nov 3, 2016 |
# ? Nov 3, 2016 17:03 |
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CommieGIR posted:Just now noticed. But you forgot MIDS JTRS/LVT Sort of the same thing but not? In that it inter-operates with L16 but is completely different internally. I think MIDS and LVT refers to the host terminals you can connect to and that you can use it in a MID System, JTRS is that it's the SDR version of the radio developed that is compatible with the JTRS SCA Spec. Yeah, it's alphabet soup. Cool system though.
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# ? Nov 3, 2016 19:36 |
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Yeah, MIDS is just a smaller JTIDS box, and JTRS is the next gen upgrade for it. It's all still under the umbrella of "Link 16 poo poo". And you can only be part of the party if you're written into the network description document.
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# ? Nov 4, 2016 01:33 |
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Wingnut Ninja posted:And you can only be part of the party if you're written into the network description document. I just fix the things
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# ? Nov 4, 2016 01:44 |
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Wingnut Ninja posted:Yeah, MIDS is just a smaller JTIDS box, and JTRS is the next gen upgrade for it. It's all still under the umbrella of "Link 16 poo poo". hosed up that JT101 wants me to know what model MIDS is in an F-16, like who fuckin cares.
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# ? Nov 4, 2016 01:48 |
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Meanwhile all the slow movers (cargo and rescue and helo's) get the very-derpy-but-kinda-cool SADL system, which is just re-purposed Army EPLRS, which can in some manner talk to all of the previously mentioned systems, with the addition of BFT and man-pack based SADL.
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# ? Nov 4, 2016 02:45 |
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Wingnut Ninja posted:Yeah, MIDS is just a smaller JTIDS box, and JTRS is the next gen upgrade for it. It's all still under the umbrella of "Link 16 poo poo". The DoD plan of airbourne communication: MIDS LVT MIDS JTRS MIDS JTRS w/ special super good upgrade MIDS JTRS w/ better than that upgrade because we already exceeded the thing we havent deployed yet ad nauseum
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# ? Nov 4, 2016 03:18 |
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Dannywilson posted:Meanwhile all the slow movers (cargo and rescue and helo's) get the very-derpy-but-kinda-cool SADL system, which is just re-purposed Army EPLRS, which can in some manner talk to all of the previously mentioned systems, with the addition of BFT and man-pack based SADL. Ugh, even A-10s don't use SADL anymore. It can talk to Link-16 via a separate gateway, however. Older block F-16s had this too, but I think most/all of the gateways are gone since both these jets have moved on with their lives.
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# ? Nov 4, 2016 04:01 |
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at the fragment that could've easily blasted through a passenger terminal
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# ? Nov 4, 2016 17:02 |
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The next time I see someone in games whining about wanting more "realism" in their flight simulator, I'm going to point them at this Link 16 discussion. unless I forget, which I'd like to do. I don't even want to click on that billion-page long spec document.
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# ? Nov 4, 2016 18:09 |
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Psion posted:The next time I see someone in games whining about wanting more "realism" in their flight simulator, I'm going to point them at this Link 16 discussion. Flight Sim X: Wirebundle Troubleshooting and Aircraft Documentation Edition.
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# ? Nov 4, 2016 19:20 |
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CommieGIR posted:Flight Sim X: Wirebundle Troubleshooting and Aircraft Documentation Edition. You'll buy it when it goes on sale on steam, and never stop regretting it
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# ? Nov 4, 2016 19:24 |
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Psion posted:The next time I see someone in games whining about wanting more "realism" in their flight simulator, I'm going to point them at this Link 16 discussion. You have no idea. I think I picked up my study sim habit from my days at Boeing working on F/A-18 software. Kind of makes me yearn for a sim with more up-to-date flight software. Super Hornets can do some cool things with situational awareness that's sorely lacking from any other sim I've seen. On the other hand, it would almost be too easy to play Falcon BMS if you didn't have to ask the AWACS where poo poo was anymore. It would all appear right on the map from datalink.
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# ? Nov 4, 2016 19:43 |
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Except your terminal would be inop for at least 1/3 of your sorties, and the AWACS would be flying with the wrong crypto 1/4 of the rest.
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# ? Nov 4, 2016 20:03 |
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Godholio posted:Except your terminal would be inop for at least 1/3 of your sorties, and the AWACS would be flying with the wrong crypto 1/4 of the rest. When red AEW loads blue crypto and net time, it's an interesting exercise.
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# ? Nov 4, 2016 20:09 |
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Godholio posted:Except your terminal would be inop for at least 1/3 of your sorties, and the AWACS would be flying with the wrong crypto 1/4 of the rest. "We have to power cycle three times, once before take off. We wanted to call it a red ball, but we got it working. Never got good BLOS connection"
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# ? Nov 4, 2016 20:19 |
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mlmp08 posted:When red AEW loads blue crypto and net time, it's an interesting exercise.
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# ? Nov 4, 2016 20:41 |
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Godholio posted:Except your terminal would be inop for at least 1/3 of your sorties, and the AWACS would be flying with the wrong crypto 1/4 of the rest. Also need a chance for a random compressor stall.
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# ? Nov 4, 2016 20:47 |
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mlmp08 posted:When red AEW loads blue crypto and net time, it's an interesting exercise.
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# ? Nov 4, 2016 20:49 |
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# ? Mar 29, 2024 15:31 |
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Saw it happen 2 days in a row from the E-2 crew. A bunch of red air being reported as blue until VID, red air deep in canyons getting eaten alive by intercept geometry that should have been impossible given line of sight, track downtell/cueing to give SAMs max kinematic range, EA and range RCS range limitations be damned. On day 2 the exercise director at least made the reasonable call to tell the E-2 to turn off link-16 and do manual picture calls instead of creating this completely unrealistic scenario.
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# ? Nov 4, 2016 21:02 |