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Yahoo25

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  • in reply to: Does the LCA program make sense? #2655239
    Yahoo25
    Participant

    Actually H-4 is I think the Pakistani designation for the T-Darter. It really is NOT indigneous. Does Pakistan really have the tech to push out a BVR missile right now?

    Read the key word. Indegenously manufactured not Indigenously designed.

    in reply to: Does the LCA program make sense? #2655245
    Yahoo25
    Participant

    this organization is responible for missile projects but they don’t put projects on site just show there expertize.
    http://www.nescom.gov.pk

    in reply to: Does the LCA program make sense? #2655255
    Yahoo25
    Participant

    Actually SA has 3 BVR programs, R-Darter, S-darter and SAHV-3(T-Darter).

    http://www.aeronautics.ru/archive/reference/Air-to-Air_Missiles/South%20Africa.htm
    AAM ID / Country 32 / South Africa
    AAM model SAHV-RS (MRAAM)
    Classification Air-to-Air Missile
    In service since 2003
    Physical data Length Weight Diameter
    3.60 m 140 kg 180 mm
    Payload Warhead Guidance Fuze
    n/k inertial and active radar n/k
    Propulsion solid
    Status development

    in reply to: Does the LCA program make sense? #2655261
    Yahoo25
    Participant

    yes thats my question. he has not said what technology, from where and what is the nature of this technology at all. Let us
    assume its the SA missiles.

    Kentron has not acknowledged any of it..nor have I seen posted
    reports of its test program in SA (thats why I asked you to search
    all the archive subscriptions you seem to have)

    If indeed ths superdarter were completed, wouldnt the SA Gripens
    just love to field this superior weapon than just the basic R-darter ? yet its the r-darter they are fielding per the website.

    sale of the technology to Pak while banning the host country itself from using it ? strange to me.

    You say the PAF has been testing it with no publicity. Possible, but then its just your word or someone in a internet forums word.

    Regarding SA. Check the Air to air missile section of http://www.aeronautics.ru they are introducing Ram-Jet powered BVR in coming year.

    here is another quote from JANES 2001.

    A company representative stated during 2001 that Kentron is working on a future possible upgrade to the R-Darter, but revealed no details of the changes it plans to make. It is possible that Kentron may adapt some of the technology developed for its ramjet-powered LRAAM programme (S-Darter) for the R-Darter. Details of the LRAAM/S-Darter are included in the Unclassified Projects section

    here is one example of testing BVr missile although designation is misrepresented.
    Pakistan tests air-to-air missile

    From Our Correspondent

    ISLAMABAD — Pakistan successfully test-fired an indigenously manufactured, air to air, anti-aircraft missile on Monday.

    According to the credible sources, the missile, fired from a fighter jet, successfully targeted a flying object. This H-4 missile is made by a subsidiary organisation of NESCOM and it is the most advanced version of H missiles.

    According to the sources the missile was fired on its target from a Mirage plane over the Arabian Sea. One of the salient feature of the H-4 missile is that it can hit even the out of sight target. The successful experiment of the air to air missile will go a long way in countering the enemy’s air supremacy.

    http://www.nation.com.pk/daily/apri…/main/top10.asp

    in reply to: Does the LCA program make sense? #2655269
    Yahoo25
    Participant

    you say PAF has acquired the tech. what does it mean ? you gave no evidence that SA has ever tested and done the development lifecycle of the missile….do you mean the PAF will do the test program ? manufacture it in Pak ?

    Please search your considerable sources for reports of SA testing the bvr missile…

    PAF has been doing testing for MUPSOW, Raptor for long time now but without publicity. So this should be put int the same category .

    in reply to: Does the LCA program make sense? #2655273
    Yahoo25
    Participant

    are you still quoting from the same six years old article. I note the use of the word “would” indicating it was just another design idea at that stage.

    We need evidence ie. credible reports of the missiles further development, status and the test firings to believe you tales of both the wvr and bvr missiles.

    A lot of water has flowed down the river since 1999.

    Thats another source with translation.

    Yes water has flown down thats why it is completed now only integration from next year JF-17 is left.

    http://www.dawn.com/2004/04/17/top6.htm
    “We have now selected the BVR missiles for integration into the JF-17 Thunder. We made a breakthrough recently by acquiring the technology,” he said. He said the JF-17 would also carry H-2 and H-4 bombs.

    in reply to: Does the LCA program make sense? #2655286
    Yahoo25
    Participant

    > proposed

    thats the keyword yahoo. your report dates back to 1999 and
    some are even earlier in the other thread. where are the reports
    of prototype development and test firings ? A typical AAM takes
    dozens of test firings from land and air before it enters service.

    > “very impressive on paper”.

    thats the executive summary unless you provide some contemporary evidence all is fine and dandy.

    This is not an FC-1 thread and i have posted the link from Dawn in the other FC-1 thread that PAF has acquired the tech for BVR from official source. That should be enough.

    in reply to: Does the LCA program make sense? #2655291
    Yahoo25
    Participant

    The missile would use an engine ramjet Somchem that already had been tested successfully. The missile would be equipped with TVC that would function in the 2-3 first seconds of the flight. In the remaining portion of the flight the control would be for barbatanas in the tail controlled for electromechanical servants. The new sensor TO GO would be based on the technology developed for the sensor of the A-Darter.

    The ogive would be of 20kg and the missile would fly Mach 2-3 in a distance of 30km when gone off of the ground and until 100km when gone off of air. The production version if would call S-Darter and the version with date link would be the T-Darter

    in reply to: Does the LCA program make sense? #2655301
    Yahoo25
    Participant

    To make it more irrelevant. T-darter derives from S-Darter propulsion and R-Dater seeker technology along with datalink.

    341 words
    24 February 1999
    Flight International

    Denel of South Africa is offering Pakistan a package of air-to-air weaponry for its planned Chengdu Super 7 fighter being jointly developed with China. It includes a proposed joint development of a datalink-equipped radar-guided beyond visual range (BVR) missile.

    The Pakistan air force confirms it is evaluating a range of active-guided BVR missiles, including the newly proposed T-Darter development by Denel’s Kentron. The air force’s Super 7 chief project director, Air Vice Marshal Hamid Khawaja, describes the South African missile as “very impressive on paper”.

    T-Darter is understood to be a further development of Kentron’s radar-equipped R-Darter now in low-rate production and Ramjet-powered S-Darter or LRAAM.
    The new proposed air-breathing missile would incorporate a datalink for mid-course guidance updates and effective target engagements at ranges in excess of 50km (27nm).

    The South African company acknowledges “Kentron has been discussing various proposals for air-to-air missiles with the Pakistan air force. These proposals include the U-Darter and derivatives of the Darter family, such as the fifth generation A-Darter missile, as well as the ramjet technology developed by Denel’s Sochem division.”

    in reply to: Does the LCA program make sense? #2655306
    Yahoo25
    Participant

    Indian your post is completely irrelevant to this thread so i will reply a little irrelevant
    here is JF-17 proposed radar.
    http://members.lycos.co.uk/mgasmgas/files/grifo_s7_02.jpg

    in reply to: Does the LCA program make sense? #2655381
    Yahoo25
    Participant

    But by then India would have a decent aerospace industry ready to chum out the next gen UAVs, the point is, its better to pay in Rupees than in USD, it is hard for India to afford to replace the MiG-21s today however coupled with economics growth and indegenousization, replacements will be faster in the future. This is why the thread title is stupid, of course the LCA makes sense and of course the LCA can be upgraded to face any 4+gen fighters, only the 5th gen fighters will have clear advantages in stealth and so on.
    IN other news 253 flights have been completed, so says the ADA site.

    First India has to move pass LCA than think about future generations. and i don’t see LCA matching 4+ generation aircraft. it is too small for upgrades (you cannot increase the wing span or put CFT or bigger engine) and too late for practical purposes. It is best 3rd generation airframe mated to 2nd generation Indian avionics so it 2.5 generation aircraft at best.

    in reply to: Does the LCA program make sense? #2655387
    Yahoo25
    Participant

    Another sensless news item. Capability to develope Indigenously 737. Is it 737-200 in
    2010 or 737-700 in 2010. In either case it does not make sense.
    Also only 40 aircraft LCA order expectation not firm commitment this late in program.

    http://www.deccan.com/City/CityNews.asp#Te…ice%20in%202009

    Tejas LCA to be inducted into service in 2009

    Hyderabad, July 31: The ‘desi’ Light Combat Aircraft, Tejas, will get operational clearance in 2007 and will be inducted into service in 2009. In all, 250 test flights of the aircraft have been conducted successfully. A naval variant of the aircraft would also be ready by 2007, disclosed V K Aatre, scientific adviser to the Defence Minister.

    Aatre said the Centre had okayed the ‘Astra’ project for the development of a beyond visual range surface-to-surface long distance missile. The feasibility study of the Airborne Early Warning and Control System would be completed by the year-end, he added. “It would take six to seven years to develop,” he said.

    The fly-by-wire Kaveri engine, for use in the Light Combat Aircraft, would also be ready in two to three years, he said. Aatre said that the aeronautical industry in the country had matured. Several projects were under way and a whole range of technologies were being developed. “We have no dearth of funds or talent,” he said. “Aerospace and avionics will play an important role in the coming years.”

    The country now possessed several simulators including pilot-in-the-loop, hardware online, computer simulator, Ajeet and Kiran training aircraft simulator and Light Combat Aircraft simulator. The unmanned aerial vehicle has proved its mettle, he added. Kota Harinarayana, former Project Director of Light Combat Aircraft, who is at present Vice Chancellor of Hyderabad University, said that the government was expecting the Indian Air Force to purchase 40 aircraft. “The Light Combat Aircraft is a good machine, costs much less than its variant abroad and has withstood both technological tests and critics.”

    Similarly, the Indian Airlines had given a letter of intent for six 14-seater Saras aircraft, he said. Harinarayana said that India was capable of producing 100-seater Boeing 737 level aircraft. “The aviation industry has come of age,” he said. “We have the technology and skill to take up various projects. We can indigenously develop a Boeing 737 level aircraft in five to six years time.”

    To a question, Harinarayana said that Hyderabad, which housed several aerospace-related units, could become an international aerospace hub with the setting up of the international airport at Shamshabad.

    in reply to: FC-1 thread – (Prototype 03 onward) #2655458
    Yahoo25
    Participant

    thanks for the pointer Yahoo.

    To further eloborate. Just look at the dates. Around 1993 for F-7 deal and 1995 for Mirage Deal. So it is decade old matter.
    Also the range incase of F-5E is 39NM(about 75KM) and incase of Mirage it is 111KM claimed. F-7 range is reduced to 57KM. Tracking ranges will be lower.
    Grifo S-7 should be around 130-150KM assuming the big nose size.

    The FIAR Grifo Radar

    Over the past 20 years airborne fire control radar have become smarter as the advent of
    micro processing has improved the speed and capacity of the system to search for, track, and
    identify targets. At the same time, the physical size of the hardware has shrunk. Thus, it is possible
    for in-service fighter aircraft to be given a state of the art radar system which, in turn, allows the use
    of new generations of air to air missiles.
    Although FIAR (Fabbrica Italiana Apparecchiatture Radoielettriche) was formed in milan
    during 1941, as a manufacturer of electronic equipment for both the commercial and military
    markets,
    the company’s involvement with radar only began in the early 1960s when it commenced production
    of the NASARR F15AM II radar , under license from Autotecnics, for the FIAT build lockheed
    F-104G. the F-15AM II is a multi mode radar , optimized for both air to air (target interception)
    and air to ground ( navigation and bombing) roles. FIAR currently has a staff of 700 and forms
    the airborne radar sector section of the systems and avionics equipment division within Alenia
    Difesa. it is the only part of Gruppo finmeccanica to be quoted on the stock exchange.
    The FIAR Grifo radar from Italy, The FIAR family of Grifo radar has achieved similar success.
    four distinct versions of this radar have been adopted: the Grifo-M, and Grifo-7 for the Mirage
    III/V and F-7, respectively, in service with the Pakistan air force, the Grifo-F for Singapore’s F-5E
    upgrade (redesigned as F-5S), and the Grifo-L for the Czech republic’s aero vodochody L-159.
    Although previously a smaller part of Italian industry, FIAR is now the lead element of GF-Sistemi
    Avionici, a finmeccanica company.
    Development of the Grifo pulse- doppler, multi-mode radar began in late 1980s, and following
    a comprehensive series of flight testing on a company owned T-39 Saberliner test bed, is considered
    complete. The four versions share a common architecture and much common hardware and
    according to the company, offer feature normally associated highly expensive and complex aircraft.
    FIAR entered the market in 1991 with the Grifo, a radar developed with private venture funding
    to upgrade Singapore’s F-5Es. it is testament to FIAR’s expertise that it won the competition in
    the face of stiff competition from British, Israeli, and American companies. Grifo is a pulse Doppler
    multi mode, multi roll radar operating in the X band (I/J band), featuring a planer antenna. with a
    performance claimed to be better than the APG-66 radar fitted to the F-16AB.
    it has five air to air
    search modes, with the capability of tracking up to eight targets, four air combat modes and nine air
    to surface modes. the last are refined by ground mapping and enhanced Doppler beam sharpening
    mapping its range 39 nm, the system weight between 80-85kg (176-187 pound) ( depending on the
    antenna), and requires a 2KVA power supply. it is cooled by compressed air and the energy
    dissipation is less than 1.5 KW, with 500W transmitter power. the Grifo offers low, medium and
    high pulse repetition frequencies (PRFs), uses digital pulse compression and has low peak power.
    Extensive use is made of built in test equipment (BITE) for maintenance simplicity and the mean time
    before failure (MTBF) is between 200 and 250 hours: a major improvement on older system.
    For
    air to air use, it has range-while- search (normal), range-while-search (adaptive), spot velocity
    search, single target track, dual target track, situation awareness, track-while scan, air combat,
    boresight acquisition, HUD acquisition, vertical acquisition and slew modes, In air to surface
    operation, the Grifo can function in real beam map, Doppler beam sharpening , sea low, sea high,
    ground moving target indicator, ground/sea moving target track, air to ground ranging, freeze,
    expand and beacon modes, Further modes include raid assessment, terrain avoidance, precision
    velocity update, beacon landing (similar to ILS) and IFF.
    Grifo can be integrated with semi-active or active radar guided missiles such as
    AMRAAM and MICA. and its can be use four type of AAM, During the system’s development
    program some 250 flying hours
    were accrued in tracor’s North American T-39D S aberliner airborne test bed. in addition, more
    than 300 flight trails were conducted with a system mounted in an F-5E.
    Deliveries to Singapore of its order for around 50 Grifo-F system, a version optimized
    for the F-5E, began in the second half of the 1990s. In 1993 FIAR signed a second prestigious deal, being selected for the modernization program for 95 Pakistani F-7P/MP fighters,The first Grifo
    radar was due to be shipped to the air force’s Chaklala site in july 1994 to fitted into MirageIII’s.
    This was a much more demanding requirement because of the smaller space available and lack of a
    cooling system. To this end simplified version was developed, the Grifo-7, which weight only 55kg
    (120 LB) and has 450W power with 850W energy dissipation.
    The modes available are search,
    single target track and air combat (super search, bore sight and vertical) modes for air to air
    operations, and air to ground ranging for ground attack.
    Two years later, Pakistan again turned to FIAR, this time in support of a
    modernization program for its ex-Australian MirageIII Os. The aircraft , being reworked by the
    Pakistan Aeronautical Complex, needed to be fitted with new avionics, including radar, global
    position system (GPS), inertial navigation system (INS), FLIR, upgraded electronic counter
    measures (ECM), and ‘ hands on throttle and stick ‘ (HOTAS) controls, The radar selected was the
    Grifo-M ( performance as the Grifo model), optimized for the MirageIII airframe, and Pakistan
    purchased 35 systems.
    FIAR’s latest contract was signed in 1997 with Aero Vodochody of the
    Czech Republic. This was for 77 Grifo-L radar systems to equip the new L-159 multi role combat
    aircraft. FIAR is constantly working on research and development programs that will improve and
    develop the capabilities of the entire Grifo family. Continual upgrades of both software and hardware
    components, enable the systems to remain state of the art.
    The Grifo incorporate full range air to air and air to ground modes. the performance
    demonstrated during the Saberliner tests against fighter targets included detection and lock-on
    ranges, look-down capability, and air to ground ranging. The company told that these tests
    “far exceeded the design objectives” of the radar but declined to be specific literature notes that
    the radar is able to detect and track multiple targets ( up to eight) at all aspects and at all altitudes.
    The system weight depending on the aircraft platform, “less then 80 kg”.
    Integration of a modern radar into new avionics architecture is never as simple as it
    appears and it is understood that the Grifo-F for Singapore’s F-5S experienced problems during
    integration, though their exact nature has not been revealed. that said, FIAR issued a statement
    during the 1996 Farnborough International air show noting that flight trail of the Grifo-7 in a
    Pakistani F-7 in airplay 1996, were declared “completely satisfactory’ by the Pakistan Air Force
    and ministry of defense. Several sorties were flown ahead of the rainy seasons in order to test the full
    operating of the radar in the country’s challenging hot weather conditions. further trails are being
    conducted to verify other parameters.
    At present, the Grifo’s claimed lower cost and the higher performance are its main selling
    points. FIAR states it has “signed order for about 200 Grifo radars’ with options on a further
    100. other candidate aircraft for the Grifo are seen as being the A-4 Skyhawk, Mig-21, SUPER-7
    and others.

    The Super Skyranger is new low cost, multimode radar designed as a replacement for
    Skyranger radar. Super Skyranger radar also proposed as retrofit for other “small nosed’ fighters.
    The company claims that super skyranger offers full look down/shoot down capability, using a
    planner array antenna scanning + 30 digree, depending on the aircraft installation. it can provide
    target range, range rate, and line of sight data (such as head- steer data for a slewable short-range
    air to air missile) to the aircraft avionics systems. it does this using an ARINC-429 serial link (with
    a 1553b option) and possesses what are described as ” excellent ECCM features.

    A modern fighter range can have a dozen or more radar modes, each optimized for a
    specific task. No standard terminology exists for all modes. In preparing the data table we have
    listed
    only the most important navattack modes for each set. The most common are as follows:

    AIR TO AIR
    LOOK-DOWN ; The most common mode used in air combat, this provides clutter free
    indication of low flying targets.
    LOOK-UP ; If the target is flying at a similar or higher altitude to the fighter, look-up mode will
    provide a longer detection range.
    Single-target track ; In simpler radars, once a target of interest has been detected, the set can
    then be locked onto it, allowing an attack to begin. The radar antenna will remain pointed at the
    target, so other targets can only be observed by returning to search mode.
    Track-While-Scan (TWS) ; Given enough data processing power, a radar can maintain a track
    on several targets while continuing to scan the forward sector. This mode allows several targets to be
    engaged simultaneously using fire and forget missiles, and gives enemy pilots no way of knowing that
    their aircraft have been single out for attack. Since the radar is still scanning , it may take up to ten
    seconds for the radar beam to re-scan each target, so the data processor will take some time to
    establish a new track, or respond to a sudden change in target course. this delay can reduced by
    using data -adaptive scanning. Also know as track priority. this replaces the conventional sector scan
    used in search mode with a series of smaller scan each directed at one of the targets of interest.
    Using this technique, tracks can be updated every few seconds.
    Range-While-Search(RWS) ; By interleaving high and medium PRF( Pulse Repetition
    Frequency) waveforms. a radar operating in this mode can sue the high PRF’s for long range target
    detection, and the medium to obtain range information.
    Velocity Search ; This uses high PRF’s to carry out a long range search. this gives the longest
    possible range against head on targets, but provides velocity and azimuth data only.
    Raid assessment ; (sometimes referred to as “situation awareness”) In normal operating modes,
    a formation of several closely grouped aircraft may appear as a single target when seen at long
    range. Raid assessment mode uses signal processing to resolve the formation into its individual
    aircraft.
    Air Combat ; (often referred to as “Dogfight mode”) This is a generic term for modes used at
    short range when the aircraft and its target are maneuvering in air combat. The scan pattern can
    either be fixed, or moved to anticipate target maneuvers. the most common are HUD, bore sight,
    and vertical search.
    HUD ; (sometimes referred to as “supersearch”) This radar automatically scans the HUD field of
    view, and will automatically lock on to the closest target.
    Boresight ; The radar beam is pointed directly ahead of the aircraft, and the pilot maneuvers the
    aircraft to place the beam onto the aircraft to be tracked. lock on is commanded manually.
    Vertical search ; This is particularly useful when both aircraft are maneuvering in the vertical
    plane, and involves setting the radar to scan vertically rather than horizontally.
    Air to air ranging ; Measures the range to an air target.

    AIR TO GROUND

    Air to ground ranging ; Used to measure the slant range to a designated point on the ground
    during gun or continuously computed point (CCIP) attack.
    Real beam ground mapping ; (often referred to simply as ‘ground mapping’) By sweeping the
    beam from side by side, the radar creates a radar image of the terrain ahead. this can be used to
    locate and attack ground targets, or to update the aircraft’s navigation system.
    Sea search ; This mode is optimized for the task of detecting and tracking ship targets. Unlike
    the land, the sea surface is itself moving, increasing the problems which the radar will have in
    discriminating between the target and its surroundings.
    Freeze ; The radar scans to build up an image, which is then electronically stored and presented
    on the display, allowing the radar transmitter to be turned off . By computing the aircraft’s
    movements, the radar allows the pilot to use the Frozen image for some length of time, before the
    transmitter is re-energised to take another radar ‘snapshot’.
    Expanded-beam ; This allows the pilot to select a small area of ground mapped terrain, then
    magnify its image.
    Doppler beam sharpening ; By processing the doppler shift in the returned echo, the radar
    creates a high definition view of a small part of the ground mapped terrain. althoug this gives a higher
    resolution than Expanded beam mode, it can only be used for targets which are 15* or more the
    nose of the aircraft.
    Terrain avoidance ; Detects high ground ahead of the aircraft, enabling the pilot to fly around it .
    Terrain following ; Flies the aircraft at a pre selected height along the planned route .
    MTI (Moving Target Indication) ; By processing the Doppler shift in the echoed from moving
    targets on the ground . the radar can separate these from the ground clutter. Quality of MTI data
    reduces at high aircraft speeds.

    in reply to: FC-1 thread – (Prototype 03 onward) #2655513
    Yahoo25
    Participant

    gatling I dont have the least bit of interest in how/why PRC chooses to use the FC1. You can shove your snide remark right back where it came from – I dont care.

    I was asking a question directed towards how PAF will use it. So far their vote of confidence has been towards south african and italian system rather than whatever you built and put on the table.

    Actually your confusing time lines and Standardization. PAF strategy looks to me more low cost and Standardization. I have AW&ST article which clearly states that Grifo Tech is drived from US APG-66/68 series radars. So it makes sense for PAF to go for radars which are common with F-16 and some point can be used to upgrade it. And Grifo series is highly modular can be used on any aircraft. And PAF has been dealing with FIAR for about 12 years so it does not look cost effective to introduce any other kind of radar.
    SA case is the same use all the missiles of the same company to lower to cost and standardize it and is decade old matter now.
    Grifo for S-7 will be lower cost (local manufacturing and customization) and quicker in integration and hence aircraft will quckly ready for Multi role duties.
    http://www.flug-revue.rotor.com/FRTypen/FRL-159.htm
    FIAR: Grifo L radar, which has nine air-to-air and air-to-ground modes each and can track up to eight targets

    PS that R-darter range is 63kM, T-Darter is 100KM.

    in reply to: Does the LCA program make sense? #2656700
    Yahoo25
    Participant

    This is an aviation forum, we might as well discuss, now this thread can be used as good propaganda tool and as reference, I bet that the same people will ask the exact same questions in a few weeks and post the same articles. I say bring them on, every time they have tried to create something, they have failed miserably and then they jump to another issue, from nose, they loose, then comes metal, now I do not know what it will be but it just goes to show, changing arguments everyday is a sure sign of defeat and/or ignorance.

    No. The same question will be not asked in next few weeks. The same kind of thread will be started some time next year just to see the claims. Further M2K purchase will hasten the start of that thread. So bye bye untill next summer for LCA :p

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