F-22 Raptor

Rappel du premier message :

Dans ce qui suit, des extrait d'un certain nombre d'article sur le web parlant de cette terreur volant, je vous laisse admirer d'abord le charme de cette bête de combat.

Comparaison F-22 vs F-35:

La brochure de LM:
http://www.lockheedmartin.com/data/assets/aeronautics/products/f22/F-22Broch5_15.pdf

Citation :

AN/APG-77 - F-22 Raptor AESA Radar

Northrop Grumman's AN/APG-77 radar employs a different type of electronically scanned phased array. In what is likely to be the most advanced airborne radar in the world, individual transmit and receive modules will be located behind each element of the radar array. The transmit function of the solid-state microwave modules will supplant the travelling wave tubes used in prior radars like the APQ-164.

The AESA configuration will have a wider transmit bandwidth while requiring significantly less volume and prime power. The system represents about half the weight of an equivalent passive ESA design. Each of the hundreds of individual solid-state devices generates only small amounts of power, but the aggregate for the entire array will be substantial.

Reliability and life-cycle costs
The APG-77's active aperture antenna offers attractive benefits. The system exhibits a very low radar cross section, supporting the F-22's stealthy design. Reliability of the all-solid-state system is expected to be substantially better than the already highly reliable F-16 radar, with MTBF predicted at more than 450 hours. AESA life-cycle costs are expected to be significantly lower than those of MSAs. The active arrays on the F-22 should have almost twice the expected life of the airframe.

Synthetic Aperture Radar (SAR) capability
Northrop Grumman has successfully demonstrated the capability to generate high-resolution, in-flight synthetic aperture radar (SAR) maps. Flight tests, on board a company BAC 1-11 test bed aircraft, have proved that the F-22 fighter's mission capabilities have expanded to include directly identifying and targeting enemy ground defenses and mobile forces.

Technical experience and features
All performance specifications have been met or exceeded.
Weapons System Integration - Integrated an LPI, AESA radar into a tactical avionics and weapons suite.
Supportability - designed for two-level maintenance and high reliability (MTBF over 450 hours).
Northrop Grumman ES is responsible for the overall design of the AN/APG-77 radar system, including the control and signal processing software. Northrop Grumman also has responsibility for radar systems integration and test activities. The main component of the radar sensor is a highly reliable Active Electronically Scanned Array (AESA), which provides the rapid beam agility, low radar cross section and target detection capability that enables the air dominance fighter to achieve "first look, first kill" capability. The system exhibits a very low radar cross section, supporting the F-22's stealthy design.

http://www.es.northropgrumman.com/solutions/f22aesaradar/

Citation :

Northrop Grumman Completes Successful Demonstration of New Synthetic Aperture Radar Capability for F-22 Fighter

BALTIMORE, Feb. 14, 2008 (GLOBE NEWSWIRE) -- Northrop Grumman Corporation (NYSE:NOC) has successfully demonstrated the capability to generate high-resolution, in-flight synthetic aperture radar (SAR) maps using the AESA (active electronically scanned array) radar being produced for the U.S. Air Force's F-22 Raptor fighter aircraft.


"The flight tests, on board a company BAC 1-11 test bed aircraft, have proved that the F-22 fighter's mission capabilities have expanded to include directly identifying and targeting enemy ground defenses and mobile forces," said Teri Marconi, vice president of Combat Avionics Systems at Northrop Grumman. "This is a hugely significant event for the F-22 program because it ensures that Raptor pilots will have access to critical detailed information about both air and ground threats before the enemy's radar ever detects the F-22."

The test flights are the first phase of a planned multi-year contract with The Boeing Company (NYSE:BA) to incorporate SAR capability into the existing fleet of F-22s and new production aircraft in support of future air-to-ground requirements.

Northrop Grumman's Electronic Systems sector leads a joint venture with the Raytheon Company (NYSE:RTN) to design, develop and produce the F-22 radar system. Northrop Grumman is responsible for the overall design of the AN/APG-77 and AN/APG-77(V)1 AESA radars -- the latter of which features the new air-to-ground capabilities, including SAR. The company is also responsible for the control and signal processing software and radar system integration and test activities.

The Boeing Company, which is teamed with prime contractor Lockheed Martin Corporation (NYSE:LMT) and Pratt & Whitney (NYSE:UTX) to design and build the F-22 Raptor, has responsibility for integrating the radar with the other avionics systems to produce an integrated suite that features sensor-fused target detection and tracking.

Northrop Grumman Corporation is a $32 billion global defense and technology company whose 120,000 employees provide innovative systems, products, and solutions in information and services, electronics, aerospace and shipbuilding to government and commercial customers worldwide.

http://www.irconnect.com/noc/press/pages/news_releases.html?d=136354

un monstre des airs rien a dire d'autre, si je peux etre jaloux de quelqu'un dans cet univers c'est du pilote de cet engin

et ce n'est que le F-22A! attendant de voir une éventuelle version C avec entre autres une capacité SEAD grâce au AGM-88E, combiné à al furtivité de la bête et sa supercroisière digne de se nom, sa maneouvrabilité extraordinaire et son rapport poussée/poids exceptionnelle! le règne du raptor risque de durer très longtemps.

de la domination aérienne rien a dire !!

tu nous gatte là raptor merci

tomcat a écrit:

tu nous gatte là raptor merci

tout le plaisir est pour moi

Chaque foto est magnifique et différente, le soleil a une manière bien particulière d'éclairer le F22

normal a sahbi le F-22 est avant tout une oeuvre d'art, un appareil d'une beauté sublime et d'un charisme sans égal

Raptor a écrit:

normal a sahbi le F-22 est avant tout une oeuvre d'art, un appareil d'une beauté sublime et d'un charisme sans égal

ca explique le choix du pseudo . C'est vrai que c'est beau, pure merveille , on le dirait presque sorti d'un film de science fiction.
Avant les chevaliers avaient de belles armures, maintenant les pilotes, chevaliers de l'air, ont de beaux appareils

HUD holographique+camera HUD

Excellent article, marci seif
j'aime bien le titre de l'article ''le nouveau maître du cile'' j'aurais préféré ''le maître du ciel'' tout court, car avant y a jamais eu de maître du ciel incontesté...
Le problème de ce superbe chasseur très puissant et très sublime est que en réalité c'est un projet incomplet, il faut l'avouer... car pour calmer les voix qui s'élèvent de plus en plus contre ce gouffre financier on a déclarer le F-22 ''opérationnel'' avant la fin de son développement, ex: helmet mounted et aim-9X non intergré encore... mais bon, ça reste le meilleur intercepteur du monde et ceux qui disent le contraire sont toujours entrain de développer un rival qui soit à la hauteur

Raptor a écrit:

j'aime bien le titre de l'article ''le nouveau maître du cile'' j'aurais préféré ''le maître du ciel'' tout court, car avant y a jamais eu de maître du ciel incontesté...

Entre toi et cet appareil, c'est véritablement une histoire d'amour

amour mine taraf ouahid, sans espoir
non je plaisante...j'aime les chasseurs pures, le F-22 a été conçu pour être le meilleur chasseur de combat aérien du monde entier, c'est un projet très audacieux qui a abouti à un chasseur très puissant et très impressionnant, et en plus c'est un appareil très sublime.

le prix du Raptor pourrait tomber de 35%

Citation :

Support For More F-22s Soars in Congress
Jan 20, 2009
By Amy Butler



Even before President-elect Barack Obama to takes office Jan. 20, U.S. lawmakers are making a push in letters addressed to him to secure the future of the stealthy F-22 production line in Marietta, Ga.

Sens. Saxby Chambliss (R-GA) and Patty Murray (D-WA) sent a letter to Obama Jan. 16 requesting funding for production for the twin-engine fighter. Citing a flyaway cost reduction of 35 percent, the senators also say the end of the fighter’s production could further drain the U.S. economy in the midst of a recession. A decision is needed by early March to avoid gaps in the production line.

Flyaway cost is now estimated at about $153 million. Lockheed Martin has seen approval to produce 187 fighters, but the Air Force continues to say it will require more of the aircraft to handle future threats such as the SA-20 and S-300/400 advanced air defense systems thought to be proliferating among potential adversaries.

A similar letter is being circulated among House members and is said to have at least 150 signatures. Though departing Deputy Defense Secretary Gordon England has been cool on the idea of continued F-22 production, Defense Secretary Robert Gates - who is staying on under Obama - has signaled interest in at least considering additional buys.

The senators, in their letter, claim the F-22 “provides over $12 billion of economic activity to the national economy.” Layoffs are likely if the production line doesn’t receive additional funding. The F-22 program is estimated to cost $64.5 billion, including the research and production phases.

AviationWeek.

35% de moins c'est très interessant! si la production continue on assistera peut être au developpement de la version C avec plus de capacités opérationnelles et plus de maturité.

Vu le récent positionnement du maroc vis à vis de l'europe et de l'OTAN est ce qu'on peut se procurer le F/A-22 si on a le budget pour...cad pour le maroc c'est une question d'argent seulement...et non pas autre chose...
Par exemple si l'egypt ou la jordanie avaient assez de fonds et souhaitent l'avoir, c soit un refus soit une vesion light...est ce qu'on a aura le même traitement de la part des yankees ?