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    Currently top 10 fighter aircraft in the world are these:

    Nr.1Lockheed Martin / Boeing F-22 Raptor(USA)

    The F-22 Raptor air superiority fighter is almost invisible to radars. This aircraft carries apowerful array of weaponry. It is the most advanced and most expensive production fighteraircraft to date. Many of sensors and avionics of this plane remain classified.

    Engines of the raptor allow the aircraft to supercruise over long ranges, while thrust-vectoring nozzles, combined with a triplex fly-by-wire flight control system, make itexceptionally maneuverable.

    The F-22 started life as a straightforward air superiority fighter. However since it'sintroduction this aircraft lacks a formidable air threat from other countries fighters. Later it

    evolved towards the multi-role fighter, as strike capability was added.

    This advanced aircraft was never offered for export customers, even other allies andNATO countries. Currently it is the best fighter aircraft ever built.

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    Nr.2Boeing F/A-18E/F Super Hornet(USA)

    The Super Hornet is the most capable US Navy multi-role fighter. It is based on the aircraftcarriers can attack both air and surface targets. The Super Hornet is also in service withAustralia as the main fighter aircraft.

    The F/A-18E/F is a larger and more capable derivative of the F/A-18C/D Hornet. TheSuper Hornet is fitted with new engines. It has additional hardpoints and can carry moremissiles. This aircraft has extended range due to larger internal storage of fuel. The SuperHornet also has improved avionics. Some measures were taken to reduce radar crosssection of this aircraft.

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    Nr.3Eurofighter Typhoon(European Union)

    In 1986 the Eurofighter consortium was formed by Germany, Italy, the UK and, later,Spain, to develop a new multi-role combat aircraft, optimized as a beyond visual rangeinterceptor with a secondary ground-attack capability. This aircraft carries advancedEuropean-designed missiles. it is fitted with a very modern and comprehensive avionicspackage.

    It is claimed that Typhoon is half as combat effective as the American F-22 Raptor. It is anapproximate estimate, however it seems that Typhoon is superior to the F-15F, FrenchRafale, evolved Russian Su-27 variants and many other aircraft.

    The Eurofighter Typhoon will form the cornerstone of European air power until well into the21st century.

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    Nr.4Dassault Rafale(France)

    The Rafale is in service both with the French Air Force and Navy. This multi-rolefighter features some of the very latest avionics systems. Also some measures were takento reduce radar cross section of this aircraft. This aircraft is very maneuverable. The Rafalecan track 40 targets and fire at four targets simultaneously.

    This aircraft can hold it's own against the latest versions of the American F-16. TheDassault Rafale will form the cornerstone of French air power until well into the 21st century.

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    Nr.6McDonnel Douglas F-15 Eagle(USA)

    The F-15 Eagle is a purpose-built air superiority fighter designed to penetrate enemydefense. Although now in service for over 30 years, it remains a formidable warplane. This

    aircraft scored more than 100 air kills and is considered among the most successful ColdWar era fighters.

    The F-15 is equipped with weaponry and electronics, enabling it to detect, acquire, trackand attack enemy aircraft, while operating in enemy-controlled airspace. This fighter carriesa wide range of air-to-air missiles and is extremely maneuverable. Also it has strong high-speed maneuverability. Through modifications and upgrades the F-15 has been constantlyimproved.

    The F-15 Eagle is still in service with the US Air Force and is expected to remainoperational at least until 2025. This aircraft has been exported to Israel, Japan and SaudiArabia.

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    Nr.7Mikoyan MiG-31(Russia)

    The MiG-31 (NATO designation Foxhound-A) was developed as part of an overallprogramme to provide the Soviet air defenses with the ability to meet the threat posed byNATO low-level strike aircraft and cruise missiles.

    This interceptor has a high speed, altitude and rate of climb, however it sacrificesmaneuverability in order to achieve these capabilities. The MiG-31 is among the fastestproduction aircraft. It uses missiles to shot-down enemy aircraft at long distances.

    The latest version is the MiG-31BM; this is billed as a true multi-role Foxhound, able toundertake long-range interception, precision strike and defense suppression tasks. Bothcockpits feature advanced displays allowing the crew to deploy precision-guided munitions.A project to upgrade Russian interceptors to the MiG-31BM standard was begun in 2010.This interceptor continue to form the back bone of Russia's air defenses.

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    Nr.8Lockheed Martin F-16 Fighting Falcon(USA)

    The F-16 was lighter, less expensive alternative to the F-15 Eagle. Unlike the F-15, whichis purely an air superiority fighter, the F-16 is a multi-role aircraft, capable of attacking airand ground targets.

    The F-16 has been produced in large numbers and participated in numerous conflicts.Over 4 500 aircraft have been built. It has been widely exported and is currently operationalwith 26 countries around the world. The F-16 is battle proven.

    This aircraft is small, but highly maneuverable. The F-16 has a bubble single-piece canopyfor excellent pilot visibility, which becomes during close combat.

    The F-16 is still in service with the US Air Force and will remain operational until 2025. Inthe future it will be replaced by the new F-35 Lightning II.

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    Nr.9Saab JAS 39 Gripen(Sweden)

    Developed by Saab the Gripen (griffin) is a fourth-generation lightweight multi-role combataircraft. This fighter uses the latest technologies can perform various missions, such as airdefense, interception, and ground attack and reconnaissance.

    This fighter is very agile for close combat due to it's advanced aerodynamic layout. TheGripen can take of from and land on short-strip airfields. A number of components of thisaircraft are US-supplied.

    It is claimed that the Gripen achieves the lowest operating costs of any fighter, currently inoperational service. It is reliable and easy to maintain. This aircraft will form the core ofSwedish air power well into the 21st century.It also received some export success. TheGripen has been exported to Czech Republic, Hungary, South Africa, Thailand and theUnited Kingdom.

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    Nr.10Chengdu J-10(China)

    The J-10 multi-role fighter is the first Chinese-developed combat aircraft that approachesWestern fighters in terms of performance and capabilities. It was intended to counter threatposed by the Soviet forth-generation fighters - theMiG-29andSu-27.The J-10 was initially

    planned as an air-superiority fighter, however collapse of the Soviet Union and changingrequirements shifted the development towards a multi-role fighter.

    The J-10 bears some resemblance with contemporary Western multi-role fighters. Alsothis plane incorporates significant Western technology and expertise

    Sumber : http://www.military-today.com/aircraft/top_10_fighter_aircraft.htm

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    Sumber : http://www.newsmax.com/TheWire/invisible-airplanes-cloaking-

    technology/2013/12/18/id/542685#ixzz2y9V8sz7D

    Hasil pembacaan menunjukkan bahawa teknologi stealth sudah lama diaplikasi oleh

    jurutera dalam bidang ketenteraan sejak selepas perang dunia kedua lagi. Dua

    negara yang menjadi pelopor iaitu Rusia dan US. Cina kini juga dalam usaha

    menghasilkan pesawat menggunakan teknologi yang sama, malah mereka berusaha

    untuk menghasilkan yang lebih canggih, iaitu menggabungkan teknologi stealth dan

    cloaking (berkaitan dengan bidang optik).

    Teknologi stealth membolehkan satu-satu objek misalnya pesawat tentera atau

    kapal perang tidak dapat dikesan oleh radar. Walaupun begitu, objek masih lagi

    kelihatan pada mata kasar. Laporan daripada pelbagai sumber pada hari ini

    memberitakan bahawa US dan China sedang berlumba-lumba untuk menghasilkan

    objek hasil dari gabungan teknologi stealth dan cloak.

    BAGAIMANA TEKNOLOGI STEALTH BEKERJA?

    Prinsip asas radar dan pantulan gelombang.

    Aplikasi radar ialah dengan menggunakan gelombang. Dalam hal ini, radar akan

    mengeluarkan gelombang radio yang mana gelombang tersebut akan memantulkan

    semula gelombang kepada antenna apabila terkena sesuatu objek. Antena pada

    radar seterusnya akan mengukur masa yang diambil pantulan untuk tiba

    membolehkan kita tahu berapa jauh dari objek itu berada.

    Badan logam kapal terbang biasa adalah sangat baik untuk memantulkan isyarat

    radar dan ini menyebabkan kapal terbang mudah dikesan dengan peralatan radar.

    Bentuk aerodinamik kapal terbang kovensional juga berupaya mewujudkan

    pemantul radar yang sangat cekap. Bentuk bulat bermakna tidak kira di mana isyarat

    radar terkena kapal terbang, beberapa isyarat dapat dipantul kembali kepada radar.

    Matlamat teknologi stealth adalah untuk membuat kapal terbang supaya tidak dapat

    dilihat dengan radar. Kapal terbang direka bentuk khas supaya apa-apa isyarat radar

    dipantulnya memantul jauh dari kelengkapan radar. Pesawat stealth juga

    http://www.newsmax.com/TheWire/invisible-airplanes-cloaking-technology/2013/12/18/id/542685#ixzz2y9V8sz7Dhttp://www.newsmax.com/TheWire/invisible-airplanes-cloaking-technology/2013/12/18/id/542685#ixzz2y9V8sz7Dhttp://www.newsmax.com/TheWire/invisible-airplanes-cloaking-technology/2013/12/18/id/542685#ixzz2y9V8sz7Dhttp://www.newsmax.com/TheWire/invisible-airplanes-cloaking-technology/2013/12/18/id/542685#ixzz2y9V8sz7Dhttp://www.newsmax.com/TheWire/invisible-airplanes-cloaking-technology/2013/12/18/id/542685#ixzz2y9V8sz7D
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    mempunyai permukaan rata dan tepi yang sangat tajam . Apabila isyarat radar

    terkena pesawat stealth , isyarat gelombang yang diterima akan terpantul jauh di

    pelbagai sudut seperti dalam rajah di bawah.

    Gambar rajah menunjukkan tiada pantulan gelombang kembali kepada

    antenna radar.

    Selain dari sudut bentuk kapal terbang, faktor bahan yang menyerap isyarat radar

    digunakan membaluti badan kapal terbang turut menyebabkan tiada pantulan dari

    kapal terbang sampai kepada antenna radar.

    TEKNOLOGI CLOAKING

    Kajian hingga hari ini menunjukkan bahawa China telah berjaya menghalimunankan

    dari mata kasar manusia sebahagian objek. Selain itu, mereka juga telah berjaya

    menghalimunankan kucing dan ikan mas dalam kajian mereka. Laporan lain pula

    menunjukkan bahawa China telah berjaya menghasilkan tidak kurang daripada 40

    jubah cloak halimunan dalam proses R&D mereka. Proses cloaking ini berkait

    rapat dengan perambatan cahaya. Kedua-dua negara masih lagi melakukan kajian

    bagaimana untuk menghalimunankan objek sepenuhnya dan berupaya untuk kekal

    halimunan walau menghadapi apa jua gelombang cahaya.

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    Dalam hali ini, menurut Ma Yungui, jurutera pakar dalam bidang optik dari Zhejiang

    University, tujuan kajian ini akhirnya adalah untuk membolehkan senjata untuk

    melepasi pemeriksaan keselamatan tanpa dapat dikesan. Ia juga boleh digunakan

    oleh askar supaya tidak dapat dilihat oleh kamera inframerah pada waktu malam.

    Jika kajian mengenai teknologi cloak ini berjaya, ia akan digunakan dalam pesawat

    tentera udara, kapal laut dan askar itu sendiri.

    Kesimpulan :

    Teknologi stealth dancloak merupakan dua teknologi yang berbeza. Teknologi

    stealth berupaya membenarkan objek tanpa dikesan oleh radar manakala teknologi

    cloak pula berupaya untuk membenarkan objek supaya tidak kelihatan pada mata

    kasar. Gabungan dua teknologi ini sangat berbahaya kerana ia akan menyebabkan

    kita tidak dapat melihat objek tersebut pada mata kasar selain tidak dapat dikesan

    melalui radar. Teknologi cloak ini masih lagi dalam kajian.