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Viewing 15 posts - 931 through 945 (of 1,640 total)
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  • in reply to: The PAK-FA Saga Episode IV #2495820
    over G
    Participant

    Actually in Russia’s Arms 2004 there is an entry for the R179-300 afterburning bypass turboject engine.
    The entry describes two types, the R179M-300 with a thrust reverser, and the R179MV-300 which is vectorable to give vertical lift. Takeoff lift in vertical mode is given as 19,800kgf and takeoff thrust (which I read as horizontal thrust max power short period boosted like with the Mig-21) 21,000kgf.

    Other figures are given as SPFC: 1.87 kg/kgf.h (in takeoff power rating).

    Max diameter: 1,400mm
    Length (less supersonic nozzle section) : 5,340mm
    nozzle inclusive : 7,040mm
    Dry weight : 2,200kg.

    Dry thrust is not mentioned.

    1.4 mts diameter..that is a big fan….dont know if could fit well on a fighter (double engined)…althought it thrust and dimensions could be reduced for a requirement to 18-17 tons, which i think si more than enough for that plane (really…more than enough), hope the pak fa will be compatible with less powered engines, that stuff must to be sold…

    in reply to: The PAK-FA Saga Episode IV #2496037
    over G
    Participant

    About the pak-fa engine , there isnt the posibility of a resurrection of the r-79 as a core for the new engine?, that powerplant seemed to be the best choice for the plane , was it abandoned?, the engine had a dry thrust of 10.5 tons and with afterburned (reheated :rolleyes:) of 15.5 tons (compared with the 16 tons of the f-119 isnt bad), also it seems it gave a good range/performance

    Any good link about the r-79?

    in reply to: Is It Me ? #2496180
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    Participant

    Wow guys, i bet there arent many here working for a bomb manufacture company…dont get how you could be so cold blooded

    These things are killing ppl that nobody cares here, but they are real ppl, comparing with ak-47s is dumb and even dirty…war sometimes force to do sad things (like kids with guns), but that have nothing to do with seeding bombs on your land that will last years and kill in a indiscriminate way

    UK signed that, dont know, dont care if was because Mr. Brown had a bad week, but sure the groups supporting the banning found an oportunity, they did it well, congrats to them 🙂

    Besides this topic is tagged as “political stupidity”, to me is the first political thread on this forum that is worth to be discussed

    in reply to: New & emerging fighters from Asia. #2496199
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    Participant

    Well MIG, with all the due respect, lets dont mix economy/politic/etc, on the thread, i mean that is highly speculative, and we will end with the oil prices/diamonds/titanium markets, etc, stuff that dont goes well with the discussion.

    The main problem is to develop the new aircraft is the engine, plain and simple, all that because the supercruiser fashion, ram airframe/X-band LO , really arent that hard as the engine

    Supercruiser is a plain failure IMO, actually i hope the russians wont develop a new engine for the pak-fa, with SC and a base higher fuel consume, well, some guys here will say “but it dont have SC”….but im sure many engineers/logistic team will say….”and who cares?”, dont get me wrong but sometimes is about the higher nominal thrust, and sometimes is about how long you can sustain it, agility is about aerodesign /engine, well yes a new engine would be needed, but a more powerful engine not always ensure a better maneouverability

    The japanese seems to have something real,i dont know from where they got the money,i dont care, but seems they have progresed a lot more than the chinese, so if you take the tangent now…well seems the japaguys will get first the plane

    in reply to: New & emerging fighters from Asia. #2496236
    over G
    Participant

    If Japan does not get the F-22, what choice do they have? :confused:

    I dont think they are researching all that because arent sure if will get the 22, seems that project is very mature now, at least 10 years of headaches..the raptor is in service since 2-3 years…ermmm not sure really, whatever, they would be happy to have the JSF…and they knew it that would have it, why bother to develop the ATD?,i know is the nowdays fashion to overhype the raptor, but the whole thing seems too integrated and have some time arround to be an “what if” project

    in reply to: New & emerging fighters from Asia. #2496243
    over G
    Participant

    Word is, there isn’t much hope for it, according to this report.
    S. Korea May Drop Stealth Fighter Development Plan

    The KFX, ATD-X, and I’m guessing at this point the Indian MCA are all on life support at this point it seems. A damn pity; I’m REALLY hoping the ATD-X at least gets airborne.

    I mean, come on, its the land of anime and giant robots; they NEED an indigenous fighter jet! 😮

    Thanks, well, isnt a surprise that koreans stoped any aspiration to have such plane

    Is quite interesting that the japaneses have developed some kind of TVC , much like in the “occidental way” (x-31/ATF/f-22), an LO/aerodynamic (and maybe structural) airframe configuration; all seems to be an integral part of the project , and not independient developments,because everything seems to be linked is unlikely (IMO) that they will stop their development with imported f-35/22s

    I hope Japan truely get into the fighter tech (and maybe market) with this research

    in reply to: New & emerging fighters from Asia. #2496256
    over G
    Participant

    The ATD-X seems to advanced to cancel it, since when the project began?, sadly it airframe is too conventional, i would expected something more original…anyway..

    Any speculation about the J-12?

    What about Korean projects for 5th generation design?

    in reply to: New & emerging fighters from Asia. #2496453
    over G
    Participant

    Interesting thread, but better keep out russia from it.

    Now, it would be interesting to classify fields per country, so, lets say..

    What nations are more advanced on…

    -Aerodynamics
    -Structural airframe (composites/titanium, Al alloys)
    -Electronics (radar, IR stuff, networking)
    -Engines (this gonna be good ;))

    Would be nice if some of you throw some of these wind-tunel models from different countries, the J-10 evolution , J-12 speculation, etc.

    in reply to: The PAK-FA Saga Episode IV #2496518
    over G
    Participant

    I sense a flamewar nearby….

    So is this the final result of lack of news?, gas price, wall texts, and a disturbing feeling ao an holocaustic posting

    May the flame be with u…

    in reply to: The PAK-FA Saga Episode IV #2496752
    over G
    Participant

    I have tried to search more about these AESA L-Band modules…any more information about this? , im lazy..and really dont have aviation magazines, so somebody who enlight a bit more about that topic?

    in reply to: Typhoon RCS #2497440
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    Participant

    Blue colored…check it, although cant interpret the color meaning, as i said before i think is a degraded scan, not showing all the RCS, these things arent shown on power point presentations…

    in reply to: USAF Chief of staff, SecAF forced out. #2497476
    over G
    Participant

    I bet he was fired because they found he was an alien …and wasnt documented…

    Come on, this discussion is stupid…

    in reply to: F-22 internal fuel #2497564
    over G
    Participant

    I’d rather talk to an expereinced GW veteran….

    guess you dont understand that the key of GW success, was numerical superiority and number of missiles on the air, that is what Riccioni is worried, most ppl dont get it , but he seems the “real deal” guy

    So if we were to go by that assumption we need a basic dogfighter at best ? I mean allready SURRENDER BVR advantage , surrender Long range radar

    damn , man plz get it , how many Awacs/f-22 in the air with amraans…how many Awacs/f-16 in the air with amraams, amraams will fail, so you will need more amraams, does’nt mean that new planes shouldnt have good radar/missiles/ecm, but as all equations when u make diferential calcule, there is an upper limit of efficiency, adding more and more doesnt make better, that is how Riccioni is thinking, maybe is why he hates so much the 22s, they try to make everiything into an airframe , but they didnt consider first that practical limit

    Saying that the last 16s blocks are out of riccioni concept is a no-sense, adding stuff is the normal planes evolution , i wonder what would happen if they added stuff to a original flying lumber…..

    in reply to: F-22 internal fuel #2497589
    over G
    Participant

    The point that sfferin and others in this thread were making that He still supports the idea of a light fighter , something like a basic F-16A , he claims is all that is needed to win wars , F-15 , Su-27 , F-22 type big fighters with high tech radars , electronics , EW , jammers etc etc is a waste according to his theory . This is good and ok for back in the day when A2A radars werent all that accurate and Missiles crappy @ best however with modern times his theory of what an ideal fighters should be remains unchanged . I wonder how he would have reacted if some senior retired WW2 guy would have said in his day that jet engines are useless and they should stick with WW2 tech and tactics .

    He wasnt GD or LMA , but was part of the LFM that back in the DAY advocated using a set of principles to DEVELOP FIGHTER AIRCRAFTS their worked influenced the specifications of what was then the F-X , so in many ways he gave to the designers (more appropriatly his team which included force and civilians) the specs under which they were to design the fighter.

    1-You are clearly exagerating, an agile cheap simple aircraft was a heck of need for the USAF at the 70s-80s-90s, when all the ppl were thinking that BVR is everything , and is a heck of need now, how many f-22/35 will be ready for accion?, how many missiles will be launched?, what is the cost per missile launched?, seems he goes on that direction

    2- He wasnt GD or LMA , but was part of the LFM that back in the DAY advocated using a set of principles to DEVELOP FIGHTER AIRCRAFTS ,……… man i know that, but it was responsability for designers to give them the design, i just said what were the goals

    This is good and ok for back in the day when A2A radars werent all that accurate and Missiles crappy

    this is gold….what you think, missiles are accurate now? yeah radar guided missiles are very important, but if you take a look, many of them -if not most- were launched at very close range the problem increase dramatically when ECM is arround, Riccioni seems to know the “real live” combat , and not the fairy tale combat tht seems very popular

    Anyway, it seems a internal fuel thread, go on..just jumped here, because seems this guy was the mentor of the -IMO- best designed US plane, so i find a bit funny how many ppl criticise him

    in reply to: F-22 internal fuel #2497632
    over G
    Participant

    His idea lead to the ORIGINAL F-16. Two wing tip AAMs, dumb bombs, and a gun. Took a long time to make it into the useful aircraft it is today. If he’d had his way it would have been an F-5 with it’s two 20mm and a ranging radar. THAT was his idea of “the perfect fighter”. So while what he says might have been relevant for the Korean War era it’s absurd for today.

    Dude what the heck are u talking about?, he isnt a plane designer, that was the problem of GD/lookheed, was not his problem :rolleyes:

Viewing 15 posts - 931 through 945 (of 1,640 total)