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jet engine design is bat poo poo crazy. back as an undergrad Jesus twenty years ago now, I remember I got to read about GE using evolutionary algorithms for turbine design (we were learning how to hand calculate enthalpy changes between turbine stages at the time)
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Mar 20, 2022 02:52
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Bar Ran Dun posted:jet engine design is bat poo poo crazy. back as an undergrad Jesus twenty years ago now, I remember I got to read about GE using evolutionary algorithms for turbine design (we were learning how to hand calculate enthalpy changes between turbine stages at the time) Jet engines are funny in that I can draw and explain how one works in about five minutes and there's nothing particularly complicated or hard to understand about the concepts but if you ask me to show the math on how it works I start hearing the flashback music from Kill Bill
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Mar 20, 2022 03:10
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The dates in that article are mood reminder. The the idea started in 1960, first got used in a one off military prototype in 1969, mass production for military started somewhere around 1974, for civilian aircraft sometime in 1980, and finally applied to civilian energy production in 1995.
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Mar 20, 2022 03:26
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GlassEye-Boy posted:there’s been significant progress on the metallurgy associated with turbine blades evidenced by the roll out of the wholly domestic ws10 engines on thee latest Chinese fighters. chip manufacturing will come soon enough as well with the amount of investment china is putting into it. Speaking of China's turbofan engines. It looks like trials for the WS-15 have finished and newer J-20s will be powered by it. All J-20s with Russia's AL-31F will be replaced with the WS-15. I'm not sure from the wording if that means just replacing the engine of the plane or decommissioning those with AL-31Fs as more WS-15 powered J-20s roll off the factory floor.
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Mar 20, 2022 03:27
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How many more years till russia, china, and/or india, africa, etc pose a serious threat to the united states?
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Mar 20, 2022 05:06
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the 2083 War of Haitian Aggression
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Mar 20, 2022 05:08
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easily less than a decade given the last 11 years of political stagnation inside of the imperial core (the united states) while all adversaries ( the periphery (russia, china, africa, india, brazil, etc) developed to the same level of societal development as the imperial core.
ErrorInvalidUser has issued a correction as of 05:12 on Mar 20, 2022 |
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Mar 20, 2022 05:08
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The Oldest Man posted:but if you ask me to show the math on how it works I start hearing the flashback music from Kill Bill it’s just thermo turbines < controls (rockets) < combustion inside the cylinder
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Mar 20, 2022 05:10
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Bar Ran Dun posted:it’s just thermo turbines < controls (rockets) < combustion inside the cylinder but why are the turbines least
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Mar 20, 2022 05:21
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ErrorInvalidUser posted:How many more years till covid continue to pose a serious threat to the united states?
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Mar 20, 2022 05:26
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i say swears online posted:but why are the turbines least thermo is algebra and calc. controls is diff eqs. gently caress Laplace transforms i hated them combustion is the chamber is a model in a computer you don’t get to grasp fully. I mean diff eqs is hard but you can do it yourself with a pen and paper. that combustion in the cylinder model you don’t get to be able to have the whole thing in your head. and I’m saying this as a guy who used to be able have all the systems of like a nuclear reactor in his head.
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Mar 20, 2022 05:27
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ErrorInvalidUser posted:How many more years till russia, china, and/or india, africa, etc pose a serious threat to the united states? negative 5
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Mar 20, 2022 06:37
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Bar Ran Dun posted:thermo is algebra and calc. you might be the person to ask: in tom clancy's the sum of all fears, he spends like ten pages at the climax of the book going over the first milisecond of a nuclear bomb and all the things that take place. there's a disclaimer at the back of the book that said minor details were changed to stop it from being a nuclear anarchist's cookbook. i haven't read it since i was fourteen but rolled my eyes at the time. was this a credible worry in any way?
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Mar 20, 2022 07:13
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i say swears online posted:. i haven't read it since i was fourteen but rolled my eyes at the time. was this a credible worry in any way? I’ve only got text books about reactors. here’s what I’d say about earlier Clancy. in the Cardinal of the Kremlin they sneak the guy out through Estonia in Tallinn . I was reading that book as a cadet. anchored on a prepo of the coast of Tallinn . our launch boat was delivering us to and from the location in the book. I’ve got pictures of myself in front of the Russian war memorial the Estonians later tore down. at one point I could have busted out books to check some of that stuff but time and alcohol. I mean with him there is stuff he did the work on and stuff he pulled out of his rear end, and the ratio gets worse as the books progress.
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Mar 20, 2022 07:28
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in the original version of the movie adaptation, the city that gets nuked was boston. they had to change it after test audiences kept cheering.
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Mar 20, 2022 07:39
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Look all I'm saying is that if a Marxist-Leninst offshoot of the PLO decided to nuke Detroit during the Superbowl I would at least spare a moment of 
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Mar 20, 2022 07:45
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Mantis42 posted:in the original version of the movie adaptation, the city that gets nuked was boston. they had to change it after test audiences kept cheering. that's not how you spell branson, missouri
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Mar 20, 2022 08:12
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the UnDallasing, celebrated each year nationwide with parades and floats with contests for best missile float
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Mar 20, 2022 09:03
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Blarghalt posted:that's not how you spell branson, missouri got a problem with silver dollar city, big shot?? dolly parton's stampede not enough for you? please
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Mar 20, 2022 09:11
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Come hell or high water I will see the Las Vegas of the Bible Belt drown in nuclear fire
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Mar 20, 2022 09:13
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ErrorInvalidUser posted:How many more years till russia, china, and/or india, africa, etc pose a serious threat to the united states? That happened seventy years ago. (minus africa, no big red buttons there)
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Mar 20, 2022 09:14
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https://www.youtube.com/watch?v=RtCc06NjG2g
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Mar 20, 2022 14:48
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Still can't believe Warthunder actually went past the 60s.
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Mar 20, 2022 14:49
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If I understand, their business model is based on people paying for different things to speed up progression through the vehicles. Since the game starts with 1930’s tankettes, isn’t that hundreds of hours of play to get to modern MBTs?
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Mar 20, 2022 14:52
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Frosted Flake posted:If I understand, their business model is based on people paying for different things to speed up progression through the vehicles. I'm not sure what the time is now or how bad the monetization is. It's a pretty decent simulator (in simulator mode) even though it's a monetized free to play multiplayer game. I played ages ago and the progression seemed sane at the time. You got new planes, tanks, and spaags until the very top of the tree. Not sure if it's a weird moneypit kinda thing now or what.
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Mar 20, 2022 15:00
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I almost got to the jet planes a long time ago before realising my planes were all british.
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Mar 20, 2022 15:23
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I wish it had used all the research and modelling they did to place vehicles in the correct context - more like IL2 or DCS - rather than doing all that work just to jumble chronology in arcady game modes, with mixed national teams. Why lovingly detail tanks only to place them in Quake maps, where only frontal armour matters and there’s a team of Swedish, Japanese and Italian tanks?
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Mar 20, 2022 17:31
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Frosted Flake posted:If I understand, their business model is based on people paying for different things to speed up progression through the vehicles. doesn't bother me since jets suck, my biplane skills are unmatched when I knew I would be poopsocking for a month I'd spend a few bucks on premium for all the bonuses but I've never spent real money on extra vehicles, so maybe $30 over 8 years
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Mar 20, 2022 18:01
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Frosted Flake posted:I wish it had used all the research and modelling they did to place vehicles in the correct context - more like IL2 or DCS - rather than doing all that work just to jumble chronology in arcady game modes, with mixed national teams.
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Mar 20, 2022 18:04
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Warthunder is just the videogame extension of the forum wars between milhist gronks about which tank could beat which other tank. Context isn't important, just whether you can smack them together until one is the victor.
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Mar 21, 2022 00:45
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tank mode sucks and iunno why it's so popular. i want to do loop-de-loops and immelmans against a chump boats are kinda fun in the lower tiers, but battleships are lame
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Mar 21, 2022 00:49
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the pt boat grind is loving awful but the torpedos are so satisfying
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Mar 21, 2022 01:11
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Which version of the F-35 is going to be on sale as a premium when it inevitably appears. I'm thinking it's the B version.
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Mar 21, 2022 01:24
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Goast posted:the pt boat grind is loving awful but the torpedos are so satisfying that like 1/ 20 chance you take out a big boy with torps is so fun but frankly raking other small boats with machine guns with nearly gunkata-like phyics loving rules too
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Mar 21, 2022 05:58
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Shotquote:An ongoing legal battle over whether the military can force troops to get vaccinated against COVID-19 has left the Navy with a warship they say they can’t deploy because it is commanded by an officer they cannot fire. Chaser quote:The U.S. military budget doesn’t allow aviators enough flight hours and sorties to be ready for battle.
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Mar 26, 2022 20:01
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the judge for this case is also the CDC can’t make cruise ships follow the covid rules they really wanted to follow guy. this will be overturned. lol at the lawyer too, crazy assed young earth creationist.
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Mar 26, 2022 20:22
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Bar Ran Dun posted:the judge for this case is also the CDC can’t make cruise ships follow the covid rules they really wanted to follow guy. scotus not quiiiite crazy enough to let "yeah you have the right to hijack a warship" stand but dont worry we'll get there
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Mar 26, 2022 21:29
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Wait, why can't they fire him?
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Mar 26, 2022 21:43
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Dawncloack posted:Wait, why can't they fire him? crazy pants judge said no. because of a lawsuit.
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Mar 26, 2022 22:18
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Dawncloack posted:Wait, why can't they fire him? States rights
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Mar 26, 2022 23:40
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