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star49

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  • star49
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    How do Russian flat-screen HDTVs compare to Japanese-made systems from Sony? I’m asking, I really have no idea.

    There are Sitronics TV but they are only LCD. But they contributed enormously Intelectual capital to various firms across the globe.

    http://www.businessweek.com/magazine/content/04_10/b3873062.htm?chan=search
    Want Innovation? Hire A Russian
    Few companies have made a bigger splash in global markets in recent years than Samsung Electronics Co. The South Korean company has blasted past its Japanese and U.S. competitors to take a big share of the international electronics and mobile-phone markets. Last year it boasted profits of $5.1 billion on revenues of $37 billion. And one key to Samsung’s success has a surprising address: 1 Bolshoi Gnezdnikovsky Lane, Suite 300, in Moscow

    in reply to: INS Vikramaditya delayed until 2011! #2091686
    star49
    Participant

    Su-35, F-22, F-15E/S/K/SG, Typhoon, Rafale, Gripen, Mig-35, Su-30MKI, F-16E/F, F/A-18E/F……………….oh sorry thats ten, and in no particular order. There is nothing special about the Mig-29K.

    Most of your fighters are not carrier based. and MIG-29K has better TWR than
    Rafale/F-18E. MIG-29K should provide advantage armed with Kh-31 Antiship missile compared to Exocet/harpoon of Rafale/F-18. so we can conclude that for its intended role MIG-29K is top fighter. there other things like IRST and range more than Rafale on internal fuel.

    in reply to: J-10 vs J-11 #2496907
    star49
    Participant

    I included it because the figure meant operational weight, not just take off weight. This is rather vague but in Western parlance for F-16Cs, it includes 2 BVRAAMs and 2 SRAAMs. (For F-16A it would indeed be two SRAAMs, but for F-15 it also means carrying four Sparrows.)

    So what difference NTOW and operational weight? and u cannot follow some other countries u have to exactly follow FC-1 as it is from the same firm.

    F-16A weight is 7400KG. not 7000KG. there is difference in capabilties between Block 1/5/10 and 15 even in F-16A. 7 to 9 to nine weopon stations.

    http://www.f-16.net/f-16_versions_article3.html
    Weights: 16,285 pounds empty, 25,281 pounds combat, 37,500 pounds maximum takeoff

    look at NTOW. 7400+3150+900kg= 11450KG so do u think those 900KG = 2 sparrow+2 sidewinder which itself will become 700KG so where is Pylons+gun+amunition weight.
    and actually F-16C has better TWR than F-16A.

    The J-10 videos show the aircraft capable of high angles of attack in short take offs and landings. That’s quite indicative of low wing loading.

    .

    you dont know what load conditions are video made.

    in reply to: J-10 vs J-11 #2497501
    star49
    Participant

    Wrong, the fuel tanks are not included. I am only saying internal fuel capacity plus most common AA layout.

    so why u include 2 BVR missiles in weight calculation for J-10 when FC-1 has 2 SRAAM from the link and logically it can have 2 SRAAM for 9100KG NTOW weight.
    Dont try to assume NTOW from other fighters.

    You can consider ammunition weight, but not pylon weight. The FC-1 uses the wing tip rails directly to hold two AAMs there.

    it proves u cannot include 2 BVR missiles beyond doubt.

    in reply to: J-10 vs J-11 #2497511
    star49
    Participant

    Because the figure quoted is operational weight, which means the most likely and most common A2A configuration.

    Su-27 configuration has 4 BVR missiles, plus 2 SRAAMs.

    when we put examples of M2K/F-16/F-2 ur truly said other countries examples should not be applied to Chinese. I am just giving real example of FC-1 with 2 WVR. and J-10 is always with fuel tanks. what next ?u will say ET also should be part of J-10 NTOW. so J-10 will become even more lighter.

    And how can 393kg be equal to 2 SRAAM? PL-5E is only 85kg, PL-8 is 115kg.

    and how can 2 SRAAM+2 BVR equals to 393KG. the likely answer is pylons and amunnition/gun weight. u cannot put 2 BVR missiles in 9100KG NTOW of FC-1. Dont try to challenge official figures.

    A CFT would hold much higher than 400kg of fuel. It would have doubled the fuel capacity.

    yes but it also add weight and drag. some thing designed for internal fuel is far better solution than any bolt on solutions.

    Beefing up a structure does not necessarily mean you have to add a lot of weight into it. The Mirage 2000 did not add that much weight when the structure is beefed up. Two things. The J-10 has a more visible spinal support structure whereas the F-16 doesn’t. To beef up the F-16, you need to beef up the monoque cylinder. If you have a spinal structure (semi-monoque) you don’t have to beef the cylinder that much as opposed to just beefing up the spine. Another thing, the J-10 has longer wing roots than the F-16 due to its delta wings. Same thing with the Mirage 2000. Wing roots are load transfer devices, and the longer they are, the better for the fuselage and wings.

    M2K external load has been more or less than same from Mirage-2000D to M2K-9. only M2K-9 weighs around 7900KG. similarly is the weight of JAS-39A to JAS-39C. but external load of JAS-39C goes to 5300KG. J-10 as design has very limited potential of turning into Multirole fighter. It will remain single role fighter.

    in reply to: J-10 vs J-11 #2498139
    star49
    Participant

    Please try to at least understand a statement before ranting against it.

    How is anything above not charaterised by the statement that, the two countries/blocks have different design philosophies that make any attempt at extrapolating the weight of one plane using another of a similar size designed by the other country a pointlessly inaccurrate excerise?

    Why it is pointless exercise. similar size and volume should lead to similar weights assuming everything else equals like high performance. u cannot compare a bomber like Jaquar to a Fighter.
    M2K and F-16 weights closely follow each other within 500KG range. M2K-9 is 7900KG.

    That rant only goes to sum up your pathetic compulsion to bash any and everything Chinese any chance you get that consititutes the only reason for you deciding to post in this thread and others like it.

    I already got your point as J-10 is speciallized air to air fighter so its weight cannot be compared to multirole fighters like F-2/F-16E. but u cannot ignore some basic logic of internal volume, high performance with 3 ET that people here are claiming. it is not pathetic. I am not going into big canards.

    in reply to: J-10 vs J-11 #2498149
    star49
    Participant

    Air Force Monthly. Issue after the J-10 went public.

    so u got 13,200KG figure from AFM and u automatically assume that it includes 2 SRAAM+2 BVR missiles?. Apparently Chengdu does not follow Sukhoi of 2 SRAAM+2BVR for Normal Takeoff. so why add 2 BVR missiles to J-10? as people claiming here that people should look at FC-1 for J-10 caculation not F-16/F-2

    here is example of FC-1 fighter. cac figure maybe more updated than Catic.
    6411KG empty weight+2268fuel+393kg for 2 SRAAM= 9100KG weight there is no mention of BVR missiles in NTOW calculation.

    http://www.catic.com.cn/en/Product_Server/products_intro.asp?list=&Content_id=2466&TypeTreeID=1833

    Weights and Payload
    Normal take-off weight(2x SRAAM) 9,100kg
    Max. take-off weight 12,700kg
    Max. external load 3,720kg

    http://www.cac.com.cn
    Owlet dragon/FC-1airplane main engineering data:
    空机重 6411KG normal total weight 9072KG
    Most greatly total weight 12474KG biggest landing weight 7802KG
    Machine in total oil mass 2268KG always outside hangs ability 3629KG
    Thrust ratio >=0.9 biggestMseveral 1.6
    Use 升限 15,240meter biggest redeployment ranges 2,037kilometers
    起飞滑跑 is away from 609meters 着陆滑跑 to be away from 823meters
    Entire machine: Long14967.9mm extends 9464.6mm high4774.85mm

    F-16’s internal fuel configuration is said to be around 3000 to 3500kg.

    From the Lavi link it says F-16 is 3100KG. If F-16 were in 3500KG region. i dont think they would bother to devlope CFT for it. As internal fuel cadd less drag and weight penalties.

    Because an F-16C is intended heavily as a strike jet first. and much of its internal firming up has something to do with that. Also it has its own structural deficiencies that cause earlier models to show cracking, so the F-16C was heavily beefed up. Both GE F110 and PW F100 engines are also heavier than the AL-31F. The J-10 is mean as an air superiority fighter with a secondary ground attack support.

    So do u think J-10 does not need a beef up structure for all high Gs with 3 T which itself add 3000KG with all the drag.

    in reply to: J-10 vs J-11 #2498462
    star49
    Participant

    Your entire line of reasoning is flawed even though you already touched upon the reason already.

    You are comparing western design philosophy with Chinese. Just because Europeans and Americans like to make their planes heavy to meet the multi-role criteria is no reason to insist that the Chinese are also doing so. The M2K, F16E, Typhoon and Rafale are all designed as multi-role fighters meant to carry AAMs, bombs and AShMs, maybe even all at once. That requires substantually greater structural strength, which equals wait. Just look at how much weight the F16 has gained moving from the basic AA F16A to the multi-role F16E, and thats even with improving and increasing use of composity materials. Comparing western types to Chinese types is simply apples and oranges.

    There is little to no evidence to suggest that the Chinese are also imposing such requirements on their fighter designs, and for the most part, it looks like the PLAAF is still mainly a type dedicated force because they have the numbers and depth of types to do so. We have not seen the J10 carry anything heavier then fuel tanks or lightweight bombs. It looks pretty clear that the J10 is primarily an AA type, while the strike missions would be left to the JH7As and Su30s.

    You argue that the JF17 is lighter because it was designed to carry less, but funny that you refuse to apply that same logic to the J10. Hell, your F5 example only serves to further underline the point that a plane can be remarkably light, thus physical size is a very variable means to judging weight. Another example would be the J8II, which is actually similar in size to the Flanker, yet you would not have guessed it just going by the weights.

    And also remember that the JF17 uses absolutely no composites and is still a ton lighter then the M2k. One wonders how lighter a plane designed with a similar philosophy but also employs a lot of composites would be compared to western types of a similar size.

    M2K carrier much powerful engine with atleast 400KG more weight than RD-93. Add to that internal fuel capacity of M2K is 800KG more than FC-1. so no wonder it is 1 ton heavier than FC-1. I am not even going into 9 weopon stations and 6300KG weopon load of M2K. your basically where the French were in Mid 70s interms of aircraft manufacturing.

    in reply to: J-10 vs J-11 #2498577
    star49
    Participant

    If the J-10 is large, it would have the internal volume to support the fuel right? Look at the pictures and how many times the plane is carrying external tanks. The AFM specs are correct except for the internal fuel part, which is actually copied from the erroneous specs before. 4500kg internal fuel is roughly the same what the J-8II or the Typhoon, both similar in weight, would carry.

    I say the J-10 is around 3300 to 3500kg internal fuel capacity. You can simply subtract 13200 operational weight, with 8300kg empty weight. You get 4900kg of all stores. Subtract 2 x 115kg for the two PL-8, 2 x 180kg for the two PL-12. 200kg for the gun ammunition, and 100kg for the pilot. Each hardpoint may have at least 100kg for the pylon, so take out another 400 to 600kg.

    From where this artibtrary 13,200KG weight comes from? here people are claiming that J-10 can do stunts with 3 ET that Flanker cannot do in clean configuration. and ur now claming higher internal fuel capacity than F-16.
    so why it should weigh the same as late mode F-16 like 8,500KG. and i am not going into couple hundred Kgs weight that goes into canards and presumably bigger nose than F-16 with bigger radar like MIG-29.

    in reply to: J-10 vs J-11 #2498870
    star49
    Participant

    Composites mean nothing when it comes to real aircraft weight, just a lot of advertising. The Japanese F-2 have more composites than any of these two fighters and its weighing around 9700kg empty.

    F-2 is big size F-16 with all the newer version like F-16E features. Just the first generation AESA radar alone weighs 300 to 400KG and associated support structures.

    LOL. You have no idea that the PW1120 engine only weighs over 200kg lighter than the AL-31F engine.

    So really, how can the J-10 look much larger when everyone can see the fuselage is tightly wounded around the AL-31F engine, when the two engines are roughly similar in diameter and the AL-31F is only less than a meter longer.

    PW1120

    * Type: Afterburning turbofan
    * Length: 4,110 mm (13.5 ft)
    * Diameter: 1,021 mm (3.35 ft)
    * Dry weight: 1,292 kg (2,848 lb)

    AL-31F

    * Type: Two-shaft afterburning turbofan
    * Length: 4990 mm
    * Diameter: 905 mm inlet; 1280 mm maximum external
    * Dry weight: 1570 kg(Russia standard), 1800 kg(French standard)

    Lavi has only 2700KG internal fuel capacity withe engine that is 1 meter shorter. so u are just adding One meter to Lavi to get J-10 length?
    Mirage-2000 has 3100KG fuel capacity with 7.5tons weight. it all comes to internal volume to support the fuel.

    in reply to: J-10 vs J-11 #2498903
    star49
    Participant

    Wishful thinking my A@@. Why don’t you actually furnish the updated information to show that.

    Here are the AFM specs and these were the only set of specs that was released **AFTER** the J-10 became officially public and acknowledged.

    Length: 15.50m; Wingspan: 9.7m; Wing area: 39m2; Empty weight: 8,300kg; Maximum take-off weight: 18,000kg; Air-to-air combat weight: 13,200kg; Maximum speed: Mach 2.2 (high-level) or Mach 1.2 (sea-level); Internal fuel: 4,500kg.

    Every picture you can see shows the wing area of the J-10 to be much smaller than the J-8II, much claim that the wing area would be BIGGER.

    And even what you are quoting are not even the exact “wrong” figures. It is 9750kg, not 9730kg. And it is very low in the mathematical probability scale that you would have a weight that is exactly the same as the original Eurofighter Typhoon prototype. Which makes you wonder where the figure really came from.

    u cannot put 4500KG internal fuel in Aircraft with 9.7m wingspan, 39sqm wing area and 15.5m lenghth. these specification are clearly wrong.

    in reply to: J-10 vs J-11 #2499006
    star49
    Participant

    JF-17 is 6320 kg and J-8II is 9230 kg. If you ever looked at their photos, you’d see J-10 is closer in size to JF-17 than J-8II. It’s in fact not much larger than JF-17. On top of that, it uses more modern material than both, far more composite. As for composites/titanium, you should first lower the weight of the aircraft by good design and that’s what J-10 has. It achieved all weight requirements by being designed well and with increased composite usage in the future, it will only help with the weight situation.

    J-10 is closer in size to FC-1 than J-8. Just post the picture side by side.

    J-8I uses heavier and weaker material than J-10. The materail used on J-10 is a couple of generations ahead of J-8I. This comparison is frankly just sad.

    there is no evidence of that. Just FC-1 pictures show the quality of construction which is the same as J-7

    is it J-10’s fault that F-16E and F-2 are such overweight designs?
    Rather than using Chinese fighters JF-17 and J-8II as the basis of comparison, you pop up overweight fighters like F-2 and F-16E.

    they arent overwight fighters. They carry 10,000 KG under wings. which is hopless for J-10.

    yet, J-10 has a far better safety record than flankers. Says something about the quality of its FBW.

    Flanker has the best 4th generation fighter record of any fighter. J-10 is limited to one airforce, limited time frame and limited quantity.

    lol, those extra fuel tank can never reduce the advantage against the unstealthy behemoth that is su-27. You speak as if you’ve never seen the plane.

    surely u have calculated it.

    If 2 PL-12 + 2 PL-8 can’t kill the opposing plane, it probably would be dead already.

    Flanker has enough fuel to enagage and disengage at will huge load of missiles.

    mirage 2K
    length 14.36 m
    span 9.13 m

    JF-17
    length 14 m
    span 9 m

    yet, JF-17’s empty weight is over 1000 kg lower than that of Mirage 2K. You can find this from sinodefense, which takes this from CAC’s official published data. So, why are you using Mirage 2K to compare to J-10?

    I think u should also consider that M2K has much greater wing area, Internal fuel capacity that is alteast 800kg more, Engine that is alteast 400KG heavier, and can carry 6300KG of external load which even J-10 cant carry let alone FC-1. As usual ur comparisions are always wrong. so it is not surprizing that it is heaver than FC-1

    in reply to: J-10 vs J-11 #2499157
    star49
    Participant

    Both the F-15 (last developments) and Su-27/J-11 (from the start) have FBW.

    Only MKI/Su-27SM has upgraded FBW. and it is no assumed that latest F-15s are used in DACT.

    in reply to: J-10 vs J-11 #2499307
    star49
    Participant

    STAR 49

    Very likely the J-10 is bigger than the Gripen, however the Gripen is much slower its max speed is Mach 1.8.

    the J-10 having a variable geometry inlet will have a faster speed than the Lavi and F-16, so a figure in the region of Mach 2.2 is very likely.

    Its inlet might or might not have an inlet radar difusor like the F-18E and up to a level the Engine might face the radar radiation directly.

    It is unlikely the fighter will go beyond what an F-16 goes in acceleration and rate of climb fully armed and with fuel tanks. The J-10 certainly must have better performance than the IAI Lavi in terms of speed.

    Compared to a Flanker probably is close in speed in my opinion it is slower but it must be faster than a F-16.

    The J-10 also might have good AoA handling thanks to its ventral inlet, the Swedish chose the side inlet arrangement to make smaller the JAS-39 and they indeed also saw the posibility of twin fins.
    However the JAS-39 has not ventral fins, this means the aircraft has good high AoA behavior able to control inertia coupling and sideslip yaw movements, also it has vortex generators in the pitot tube that must help it to control assymetric yaw movements.

    In what it looks much much slimmer than the J-10 is the aft part of the fuselage which in the J-10 seems quit draggy with the ventral fins.
    The JAS-39 lacks any ventral fin and has very good fuselage blending from the inlet nacelles to the aft fuselage reducing greatly drag.

    So is possible in my opinion the JAS-39 is only slower due to the inlet design and not to a draggier fuselage.

    Gripen is Mach 2. and top speed is not important as acceleration. how u put 3 ET and achieve the same result. just 3 ET empty weight alone will add 600 to 800KG.

    http://www.gripen.com/en/GripenFighter/TechnicalSummary.htm
    Aircraft data:
    Length (excluding pitot tube): 14.1m (46ft 3in)
    Length (Two-Seat variant): 14.8m (48ft 5in)
    Wing span (including launchers): 8.4m (27ft 6in)
    Height overall: 4.5m (14ft 8in)
    Maximum take-off weight: 14 tonnes
    Maximum speed: M2.0 and supersonic at all altitudes

    Lightweight structure employing advanced materials and construction techniques

    in reply to: J-10 vs J-11 #2499371
    star49
    Participant

    I don’t really see how the Gripen is sleeker and it certainly has its share of bumps. Furthermore that kind of non assisted intake is not helpful for high AoA.

    The width of intake does matter because it affects the plane’s frontal cross section and that affects drag. Then as you see from the bottom, it goes quickly from fat to thin, and that’s not good for the airflow. The Gripen is thinner at the butt because it has a much more smaller, and weaker, engine with much less internal fuel capacity.

    the nose is very slim thats why intake looks bigger but it is surely much smaller than J-10. Cockpit is less elevated. canards are much closer to the wings. The whole package is much sleeker and lighter weight. I doubt this thing can go Mach 2 with 3 ET. despite much smaller internal fuel and weight

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