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  • in reply to: Future air superiority UCAV #2391422
    over G
    Participant

    I But I assume your main purpose of your claim of the PKFA was to upset the US-fraction here. 😀

    Why instead of posting a counterargument you post this kind of comment?

    I will tell you, if the F-35 had come with the automated maneuverer ideas, this board would be full of this, the 35 killer robot, The terminator of the skies, etc..

    But the¨PAKFA is truly the first step on this, is the single program addressing it, so is worth the comment, is the truly first step for a fighting UAV

    People babble over all this issue, showing automated cruiser missiles as true UAVs, when russians are pretty alone doing the real research

    This might hurt your ego, Sens, but is the fact

    in reply to: Future air superiority UCAV #2391437
    over G
    Participant

    I think people is quite optimist over this UAV thing

    UAVs are practical to save weight and all thta, but again, as everything, everything depends on the scale

    A 500 kg plane would need a pilot that would weight other 100kg (equipped, etc)+ another 200 kg of support systems, sure the savings are great

    But a high performance fighter will weight +10.000 kg regardless if is a pilot or a robot controlling it, so you will save just 300 kg, sure is nice and dandy, but is worthy to remove the real time decision command ‘post’? (the pilot)

    The answer is NO

    Other horrible misconception is the bandwith/sky full of satellites babbling, this misconception, i think is moslty done by people that don’t understand what is the difference between industrial and commercial electronics, bandwidth will do nothing increasing the reaction time of the UAV, and here, the big issue are reaction time and synchronization.

    Many people around here seem to believe UCAV technology

    Show mw please , any fighter demonstrator, any real serious program on this, the best you are getting right now are just reusable cruiser missiles, show me a serious automated fighter program

    I’ll tell you, right now what is the best effort over this; the PAKFA program

    Yes the T-50 is the best and the first step on this direction, automated maneuvers directed with the pilot, is pretty the first true step on this matter, and will be quite challenging, the plane must ‘know’ where is it, what are the limitations for this maneuver, safety conditions, etc, but since a real time ordering ‘commander’ must be needed the pilot will always be there.

    This is a revolutionary concept , and not just stuffing the pilot with more and more information, something that has been the natural evolution since the 50’s

    in reply to: PAK-FA Saga Episode 14 #2394264
    over G
    Participant

    I’m pretty confident, that due the size of the plane, and the 15TM projected engines, this pakfa thing will achieve the design goals

    Of course the goals will be greatly surpassed when the new engine arrives

    The Su-27 has achieved better supersonic ranges on proved and verified testing than the F-22’s claimed supercruiser performance, with an older Al-31 variant, no internal bomb bay, and outdated aerodynamics and engine control, will it use AB sometimes?, will it be on dry power constantly?, really is not important to me, to me the final result is the important one, BTW, supercruiser was defined in the mid 70’s for the ATF program, way before the stealth requirements were discussed, so your IR signature tale won’t work on me 🙂

    New engines are needed when the old core cannot achieve the desire performance

    If the old core can be improved to achieve better performance if there is still room for upgrades, etc, why to rush a new engine?

    This plane will achieve it goals.

    in reply to: PAK-FA Saga Episode 14 #2394278
    over G
    Participant

    The Russians have said that the definitive engine is 10-12yrs away, so the legacy engines will be used for some time, on production aircraft.

    The F119 without any kind of upgrade in the last 15 years is already a legacy engine

    Not counting the fact that the 119 is basically a very conventional engine

    in reply to: Hi speed helicopter options #2395021
    over G
    Participant

    That Eurocopter thing is just a mess. They can’t be serious about it.

    — Those two props make passenger ingress/egress dangerous and/or time consuming.
    — They block a door gun.
    — They limit weapons carry ability on those stubby wings and I bet they induce nice vibrations.
    — How would they shield the fuselage from darting prop blades in case of damage? Or from ice flying off?
    — Makes one hell of a radar reflector.
    — Props next to your window is extremly loud.
    — It’s a pain when landing on slopes.

    It’s a me-too plastic monster. Hide it in the hangar you cobbled it together!

    The Sikorsky X2 is by far better thought-out and could be a real competitior to the VTOL-challenged tiltprops. That Europcopter X3 – never.

    I really think the tilting engine concept does carry most of the same issues, the radar reflection, for me is quite irrelevant for this king of machine, compared with the weight savings between each design, for example.

    The tilting design is way unsafer, since to take off/landing it does need to change their engines positions, something that i see pretty difficult on emergencies, and if one of the engines are out, the plane is pretty doomed, how the Osprey did pass safety auditing? is out of my understanding…guess too much money was invested already..

    While the Eurocopter solution does not looks better, than for example the Cheyenne solution, does not carry the gearing issues of integrate all the rotors, I’m not saying the mechanical problems of having let’s say, bevel gearings everywhere, but the RPM requirements between the propellers and the rotors, since speed and height are not related on helos, thus propellers would need an independent source of power.

    Edit: Seems that the X3 does have its propellers integrated with the main engine, I thought there were small turboshafts, to see the gearing of the thing would be interesting, either way, seems way safer than the tilting concept, and probably a lighter configuration.

    I can think on a number of factors of hy these props are there, weight balance can be one…I still think the Cheyenee solution was more ‘elegant’, but regarding gearing and shafts..there are not ‘elegant’ solutions :), either way, stuffing the gearing for a double propeller in the tail had to be a bit messy.

    in reply to: PAK-FA Saga Episode 14 #2395303
    over G
    Participant

    More:

    http://knaapo.ru/rus/gallery/events/combat/t-50/index.wbp

    …note rear w/bay doors open in the ‘burner test ^

    Must confess that I really though these were some sort of dummy bomb bays, and that the aircraft did not have any kind of doors, well, interesting to see these doors opened at last.

    in reply to: PAK-FA Saga Episode 14 #2395305
    over G
    Participant

    Wonder if people don’t get bored with this kind of discussions, ‘oh God, dont have the zigzag thingy’, ‘oh jesus, does not have the s duct’, ‘oh christ, that rivet..it looks suspecting’

    Aerodynamics are still the rule number 1 for the industry, and for the 5th gen planes, with or without stealth, so all you guys yelling and crying because this thing is rounded, this one is not, this thing has a flat belly (as the f-15,f-18-f-4), and this does not, can stuff your stealthy thing in your rear part, thank you.

    Impressive how Janes has proliferated so much stupidity

    Check the belly of the F-23, congruent topology, if you think this is a nice thing for ‘stealth’ considering optic postulates, you are wrong

    BTW, structurally, the PAKFA/T-50 seems to be way more advanced than the F-35/F-22, the pakfa structure is based on pretty large panels assembled on well determined areas so the same panel does have many riveting lines, while the f-22/35 structure is based on small panels all around the airframe, with independent assembling, ie. the conventional way.

    I don’t know if this has to do with stealth or not, i don’t care, but is a clear sign of superior engineering, large structural panels with many accesses

    BTW, for the non-rivetting tale, there you go

    http://alt.coxnewsweb.com/cnishared/tools/shared/mediahub/00/48/65/slideshow_965480_lockheed.0222_ba12.JPG

    Oh look, my Janes book told me it should not have rivets, tss

    Yes is the F22, the most overrated piggy piece of failed military hardware, how did this happened?..

    in reply to: PAK-FA Saga Episode 14 #2396453
    over G
    Participant

    “Main designer T-50 Alexandr Dawidenko… Has added, that application of composites has allowed to lower radar-tracking visibility of the plane essentially.
    It has reminded, that planes of the fourth generation – Russian Су-27 or American F-15 – have the factor of the reflected surface characterising radar-tracking visibility of the plane, within 12 square metres.
    “At plane F-22 – 0,3-0,4 sq.m. At us similar requirements to visibility”.

    I’m not denying this, is just that the procedure to get these values (the ones posted by you) seems to lack any solid basis

    About the ‘levcons’, i think they are actually canards, meaning that there is local lift coming from that surface, this surface is way too big and has a big aspect for just being another slat, the problem is that I can’t see how big is the gap between the canard and the fuselage, probably that’s the deal, increasing the pressure beneath the ‘canard’ with a narrow gap, more lift can be generated …who knows, this could be a new kind of canard, but I’m sure this is not a ‘levcon’

    in reply to: AWACS question #2397126
    over G
    Participant

    I think awacs are pretty much like every radar over there, and it detection range/probability depends on the time of exposition, which would be relative with the RPM of the disc, so probably for a big target 6rpm should be enough, while for a small and fast target it would require 1-1/5 rpm (40 seconds)

    Happens the same with modern fighter radars

    in reply to: J-6/Q-5 in 2010 #2399144
    over G
    Participant

    Any picture of it bomb bay? (i think it does have one)

    Quite nice plane, May I be wrong calling it a Jaguar equivalent?

    in reply to: Combat involving multiple aircrafts #2399154
    over G
    Participant

    You guys really think that planes are designed against other planes.

    So the soviets got the 29’s and then the USAF needed something to counter it?

    There were doctrinal mistakes with the 4th gen, the USAF found it out later

    And the ATF born

    We are not – combat moved on slightly from WW2 – energy fighting was still important in this era – but you had to take ever improving missiles into account which by the 70s/80s were not to be ignored.

    Actually, accounting missiles, energy fighters became even more important

    20-mi (32-km)

    Firts, keep on dreaming . second, fighters are not used for early warning systems, their radars are small and cannot work at full power al the time

    The Advanced Tactical Fighter -ATF was a way to get a ‘generational’ jump on the Soviet AF. There was a design competition in which eight companies submitted designs, two designs were picked… LM and Northrop to build prototypes. LM won the competition.
    Had the Cold War ‘not’ ended, the F-22 was on schedule to become operational around the beginning of President Clinton’s second term!!

    Debatable, quite debatable…and probably not for this topic, the fun thing is that now with the international crisis the USA is considering the F35 risk (actually, even before the crisis) as a better alternative, than the ‘well proven’, ‘successful’ and finished program…

    Anyways, there is way lot more history on the ATF studies than you think

    in reply to: Combat involving multiple aircrafts #2399325
    over G
    Participant

    I think you guys are really underrating the advantages of speed and altitude

    The Me-262 was an impact in the war, not because it had the best turning at low level…quite the opposite..

    You don’t understand why the ATF program was so needed

    The issue was so big that in the early 80’s LM and General Dynamics were considering behemontic and gigantic airplanes to gain a clear superiority over that horde of Mig-23s and Mig-25s…

    In my opinion 5th generation fighters will get in close combat more often that what is usually think, because for example a F-22 and a T-50 won`t be able to detect each other at long ranges,

    They will most likely know where the other plane is, the problem will be the final tracking and interception of the missile and ECM coverage

    So yes stealth vs stealth is dogfight, but then again, is not like one of them won’t see the other

    Anyways fighters don’t aim other fighters, their mission is to destroy bombers and support planes, who cares if a su-27 reach New York?

    If these fighters can avoid and outrun the enemy fighters..well, then they are done

    in reply to: F-35 news thread II #2401930
    over G
    Participant

    Hasn’t it been replaced with a helmet mounted display?

    I know this 🙂

    in reply to: F-35 news thread II #2402342
    over G
    Participant

    About the topic, wonder if there is any complain from pilots for the lack of HUD

    in reply to: F-35 news thread II #2402390
    over G
    Participant

    TVC, an air shows dream. .

    Funny, because the F22 was designed to be a fighter

    Was on a contest for a 5th gen fighter, an study that lasted 15 years which adressed supermaneoverability

    Is using TVC’s and these TVCs were critical for it selection

    Ok, these stupid russians know sh!t about air combat and the USA is the land of freedom and greatness…i can tolerate that garbage, many people are stupid

    But at least be consistent.

Viewing 15 posts - 211 through 225 (of 1,640 total)