JAS-39 Gripen

[Carlos Mathias]

Aaaaaaaaah agora sim, o acordo estratégico está assinado.

[brisa]

O povo grimpeiro.....alias sera que este aviao grimpa

[Carlos Mathias]

Bolovo, eu tenho uma melhor sobre bandeirinha. Tem aquele SU-37 com a bandeira brasileira e a russa, com duas mãos se apertando, lembra? Pô, bandeira no avião vale mais, então o acordo é com a Rússia.

[Bolovo]

Bandeira na fábrica é melhor!

[AlbertoRJ]

Gripen secures a long-term future as Sweden approves upgrade programme By Robert Hewson
December 01, 2007
http://www.janes.com/info/idr/articles/ ... cures.html

SWEDISH AESA RADAR UNDERTAKES FIRST FLIGHT TRIALS
Saab (formerly Ericsson) Microwave Systems reports that it undertook the first flight trials of a new demonstrator radar for Gripen in September 2007. The tests, performed from a Lockheed Martin C-130 Hercules transport aircraft with the radar mounted backwards on the loading ramp, generated data that the company describes as "world-unique".

The active electronically scanned array (AESA) radar is a new development, building on technology from the current PS-05/A radar of the Gripen. Known within the company as NORA III (derived from the phrase 'Not Only a RAdar'), the new radar uses a Saab-specified AESA antenna consisting of approximately 1,000 elements built by Raytheon.

Olle Nygårds

Rapara nas datas Jacques. Trazer coisa velha para o fórum a distorce a evolução dos acontecimentos.

4/23/2008 | In an event attended by over 700 international guests which was broadcast ‘live’ around the world, the Gripen Demonstrator (Demo) aircraft was ‘rolled-out’ in a spectacular ceremony in front of the world’s media.

The Gripen Demonstrator programme is the pathfinder for a whole new generation of technologies and capabilities to ensure that Gripen remains at the leading edge of fighter aircraft performance and capability well beyond 2040. The programme includes the development of a new Gripen test flying platform - Gripen Demo - and the Gripen Avionics Rig. The Gripen Demo includes new features such as the General Electric F414G Turbofan engine with increased thrust, a new Saab/Thales active electronically-scanned array (AESA) radar, increased fuel capacity for extended range, improved landing gear, increased weapons and stores capabilities, advanced communications and defensive systems and world-beating avionics structures.

http://www.gripen.com/en/MediaRelations ... rrived.htm

[]'s

Alberto

[AlbertoRJ]

Jacques e Pepê,

Ok, vocês podem ter razão:

FARNBOROUGH 2008: Saab pitches Gripen NG as JSF alternative
Flight International ^ | 14/07/08

FARNBOROUGH 2008: Saab pitches Gripen NG as JSF alternative

The export market for the Saab Gripen fighter is starting to take off. “It’s all happening at a tremendous pace” says Bob Kemp, senior vice president for international sales & marketing at Gripen International, the company that handles sales of the Swedish aircraft.

In the days leading up to the show, Gripen International submitted a proposal to Switzerland, claiming the Gripen offered the most cost-effective and proportionate replacement for the Swiss Air Force’s ageing Northrop Grumman F-5E/F fighters. Rival aircraft such as the Dassault Rafale and the Eurofighter Typhoon would both be “too expensive to allow the procurement of the required 33 aircraft while staying within budget”, Kemp says.

Switzerland is one of a number of nations who need to replace their current US-supplied fighters, alongside Greece, Malaysia and Thailand (which recently ordered the Gripen) as well as some of the potential JSF customer nations. This is a new and difficult category for Gripen International, whose early sales successes were to nations in two other categories identified by Kemp.

Launch customer South Africa helped to position Gripen as what Kemp described as the “fighter-of-choice” for non-aligned nations, replacing French and Russian fighters. Argentina, Brazil and Ecuador are viewed as further prospects in this sector. The Gripen’s next customers – the Czech Republic and Hungary - represented a different class of operator: new NATO member states that wanted to replace Soviet-era fighters with Western aircraft that would be fully compatible with their new NATO responsibilities and commitments.

Gripen International still hopes to supply some 400 examples of the existing production JAS 39C and two-seat JAS 39D models, but the company is looking ahead, and in the slightly longer term Kemp hopes to establish a new variant, the so-called Gripen NG, as the “world’s export market-leading single-engined muti-role fighter.” Even before the Gripen entered service, Saab began looking ahead at how the aircraft could be further developed and improved, especially by increasing the aircraft’s range, and by adding new avionics and systems.

After showing advanced concepts with conformal tanks, thrust vectoring and towed radar decoys, Gripen International revealed a more modestly modified configuration at Paris last year. This revised configuration featured a new forward-retracting main landing gear. This freed up internal volume for extra fuel, and the distinctive bulged wing-root fairings provided further internal volume.

Together, the changes provide an extra 38% of internal fuel, taking the total to 3,130kg, while the relocated and beefed-up undercarriage also allows a 2-tonne increase in maximum take off weight, to 16t. Since the aircraft can now carry heavier warloads (up to 6,000kg), the new variant can carry new side by side under-fuselage pylons (augmenting the single centre-line pylon) and has underwing hardpoints capable of carrying twin pylons. The new Gripen NG aircraft will also be able to carry extra-large drop tanks.

In addition to increased fuel and payload, the new variant was to have enhanced engine performance, and was to provide enhanced network-centric capability and mission survivability and better situational awareness for the pilot.

It was announced that this new configuration would be flown on a Gripen Demonstrator or Gripen Demo aircraft, converted from a two-seat JAS 39B. This aircraft was rolled out on at Linköping on April 23, 2008, and made its maiden flight on May 27. The aircraft is intended as a technology demonstrator for future Gripen variants and as a platform for technology insertion for the whole Gripen family – including existing in-service aircraft.

The Gripen Demonstrator programme also includes a new Gripen avionics rig – and is supported by investment from Saab and its international industrial partners including General Electric, Volvo Aero, Thales, Rockwell-Collins, Honeywell, APPH, Martin-Baker, Terma and Meggit and by the Norwegian and Swedish governments. The aircraft is effectively both a testbed for an upgrade configuration for the Swedish air force (which already refers to it as the JAS 39E and JAS 39F), and as the prototype for planned ‘Future Gripens’ for export customers, including variants for Norway, Denmark, and India.

The Demo aircraft is powered by one of the two F414G engines recently delivered to Saab. For the second phase of its test programme, which will begin next year after a winter lay-up, it will be fitted with a new Saab/Thales active electronically-scanned array (AESA) radar; a missile warning system; and enhanced avionics and displays. As no ‘Enhanced Gripen’ (Gripen NG) will enter service until around 2015, many of today's advanced technologies will have evolved considerably by the time a production aircraft is flying. The Gripen Demo aircraft will be used to sketch out the Future Gripen development road map, but the specific systems being fitted today may be superseded in the production version. This will allow the Gripen NG to “jump ten years ahead of the JSF in terms of technology” says Kemp, since the US aircraft’s systems are already tightly defined.

The AESA radar being trialled on the Demo offers an excellent example of this approach. The demonstrator radar is a prototype/proof of concept device which combines a modified back end from the Gripen’s standard PS-05/A radar with a Thales array, built using modules developed as part of the AESA programme for the Dassault Rafale. It will provide useful experience of AESA integration, and will demonstrate the operational capabilities of an AESA radar, but it will not be the final radar used by a production Gripen NG.

Kemp insists that the new Gripen NG will be the “main challenger to JSF”, dismissing the Eurofighter Typhoon on cost grounds. He says the Dassault Rafale will “never get started on the export market” because of what he called “launch customer nervousness – who wants to be the first and perhaps only customer?” Kemp says many potential F-35 customers were uncomfortable with the “You’re either with us or against us” approach to fighter sales. He claimed that growing dissatisfaction with technology transfer, workshare and offsets, coupled with F-35 cost escalation and slipping timescales have led “more and more JSF customers coming to talk to us about a replacement for JSF”.

Kemp listed a number of air forces as Gripen NG prospects, including Denmark (with a requirement for 48 aircraft), Norway (48), India (126-220+) and the Netherlands (85), as well as Canada (70) and Switzerland(22-33).

http://www.flightglobal.com/articles/20 ... ative.html

[]'s

Alberto

[binfa]

srs(as) boa noite! não escondo minha preferência pelo Gripen, acho que é um vetor que tem muito a acrescentar para a FAB... principalmente no que diz respeito a integração de software e armamentos....sem contar o baixo custo de operação, as industrias suecas instaladas aqui e por ai vai.... quanto a banbeira, pensei que ninguem fosse notar! quanto ao tamanho, os pequenos tambem satisfazem.....

um abração a todos e um bom final de dia dos pais! fui!!!
binfa

[Mapinguari]

Mas o NORA promete mundos e fundos, e se cumprir? Vai ser um pequeno caça com um senhor radar, páreo duríssimo...

O NORA tem um diâmetro menor que o RBE2.
Ele é AESA, mas comparativamente menor frente aos outros radares AESA que estão sendo projetados.
Radar menor tem menos módulos ativos (MMICS). Portanto, um potencial menor.

Não descarte assim a engenhosidade sueca e o know-how da Ericsson (atualmente Saab Microwave Systems), Knigh7... Ela fabrica o EriEye, um radar com varredura eletrônica muito bom, esqueceu? Já deve saber um pouquinho sobre o assunto.

[Mapinguari]

Quero compartilhar com vocês:

http://w14.easy-share.com/1701188348.html

[rcolistete]

Quero compartilhar com vocês:

http://w14.easy-share.com/1701188348.html

Parabéns pela matéria, Fontoura !

Porém tenho uma sugestão : o pessoal da Saab tinha que ser mais agressivo ao citar os custos de aquisição e operação do Gripen C/D, NG (estimados) e dos concorrentes.

Li em fórum internacional que a proposta de Gripen NG na Noruega foi de 48 caças por aprox. US$ 4,4 bi com "pacote completo" (sobressalentes, simuladores, treinamento, manuais, etc). Dá US$ 91,7 mi ou aprox. EUR 61,1 mi por cada Gripen NG. Não diz se os sobressalentes são p/ 2 anos ou 10 ou 15 anos. Esses dados são não oficiais, saíram na mídia norueguesa há uns meses. Você teria como confirmá-los ?

O Rafale, Eurofighter, F/A-18E/F, etc, dariam um custo bem maior. Isso sem dizer o custo de operação completo anual, que no caso do Eurofighter T1 para a Áustria é algo da ordem de EUR 4,2 mi por caça por ano !

Devido às melhorias do Gripen NG e custos altos de operação dos bimotores do FX-2, hoje eu defendo o Gripen (C/D e depois NG) para o FX-2 da FAB.

[]s, Roberto

[knigh7]

O NORA tem um diâmetro menor que o RBE2.
Ele é AESA, mas comparativamente menor frente aos outros radares AESA que estão sendo projetados.
Radar menor tem menos módulos ativos (MMICS). Portanto, um potencial menor.

Não descarte assim a engenhosidade sueca e o know-how da Ericsson (atualmente Saab Microwave Systems), Knigh7... Ela fabrica o EriEye, um radar com varredura eletrônica muito bom, esqueceu? Já deve saber um pouquinho sobre o assunto.

Olá, Fontoura,

Primeiramente, quero te cumprimentar por este excelente artigo da S&D e te agradecer por tê-lo compartilhado conosco. Seus artigos são muito bons. É um a pena que a revista não venha para o interior de S.P. Eu compro quando vou a Capital.
Sobre o Radar, essa explicação minha acima foi sucinta.

Constate, segundo a Jane's, o que eu havia dito ´com relação ao número de MMICS do NORA, que é aproximadamente igual ao do RBE2AA:
The active electronically scanned array (AESA) radar is a new development, building on technology from the current PS-05/A radar of the Gripen. Known within the company as NORA III (derived from the phrase 'Not Only a RAdar'), the new radar uses a Saab-specified AESA antenna consisting of approximately 1,000 elements

fonte: http://www.janes.com/info/idr/articles/ ... cures.html

Quanto a fonte sobre o número aproximado 1000 de MMICS do RBE2AA que eu tirei da Interavia Business & Tecnology:

the RBE2. This will involve an array of around 1,000 GaAs transmit/receive modules to replace the existing passive scanning antenna and the travelling wave tube (TWT) on the transmitter...

Fonte: http://64.233.169.104/search?q=cache:7l ... cd=4&gl=br


Agora, acompanhe a discussão que eu tive no link abaixo:

http://www.defesabrasil.com/forum/viewt ... start=1605

Atenciosamente

[Pepê Rezende]

Citando a Wikipedia? Está apelando...
Pepê

Seus argumentos tem sido fracos, mas este foi péssimo, ou você não viu os links oficiais do JSF e F22 ?

A própria SAAB chama o avião de DEMONSTRADOR e deve saber mais que esses sites que vc cita. A data para INÍCIO DE FABRICAÇÃO DO Su35, segundo a Sukhoi e a Knaapo, é 2010.

Achei uma ótima sacada de marketing, Gripen Demo, muito legal. Agora se atualize (no link abaixo) e veja que até 2009 TODAS as alterações estruturais serão testadas, no Gripen Demo.

http://viewer.zmags.com/showmag.php?mag ... =1#/page4/

Abraços,

Heronim

O que significa uma parada de três a seis meses por modificação, uma ótima receita para atrasar o processo.

Pepê

[piratadabaixada]

O que significa uma parada de três a seis meses por modificação, uma ótima receita para atrasar o processo.

Pepê

Parada ? Existe um cronograma, o Gripen NG está programado para 2015. Dá para entender que as versões anteriores poderão ser elevadas ao padrão NG.

Abraços,

Heronim

[piratadabaixada]

Quero compartilhar com vocês:

http://w14.easy-share.com/1701188348.html

Valeu Fontoura. Parabéns, você é o Gripen Master !!!

Abraços,

Heronim

ps: Viu Roberto, o Fontoura disse que o Gripen Demo é mais que um protótipo, ou seja, ambos estamos errados !!!!

[rcolistete]

Quero compartilhar com vocês:

http://w14.easy-share.com/1701188348.html

Olá pessoal,

Mais alguns comentários sobre os dados do Gripen NG postados no artigo acima do Alexandre Fontoura :

- 4.000 lb de bombas, 2 de 2.000 lb (907 kg) ou 4 de 1.000 lb (454 kg), casulo designador laser Litening, 4 mísseis BVR e 2 WVR, isso tudo dá um raio de combate (possivelmente HIHIHI ou HILOHI) de 1.000 mn (1.852 km);

- o AMX leva metada da carga de bombas (2.000 lb ou 907 kg) a aprox. metade da distância, raio de combate HILOHI de 890 km, com somente 2 mísseis WVR;

- o Mirage 2000-5 tem raio de combate de 1.000 mn para configuração ar-ar com 6 mísseis e 3 tanques externos (2 x 2.000 l + 1 x 1.250 l). Essa configuração é mais leve que a do Gripen NG, ou seja, o Gripen NG levando somente 6 mísseis ar-ar teria raio de combate maior ainda que o do Mirage 2000-5;

- com esses dados de desempenho do Gripen NG, ele terá raio de combate ar-ar da ordem de 2.000 km, i.e., maior que o do Eurofighter hoje (restrito a somente 3 tanques externos de 1.000 l por falta de homologação dos tanques subalares de 1.500 l e 2.000 l) e semelhante ao do Rafale (que chega até a 2.200 e poucos km de raio de combate em missão de ataque nuclear levando um ASMP-A !).

Enfim, quem quiser chamar o Gripen NG de "pulga-alada" ou qualquer apelido denotando alcance/raio de combate pequeno, que vá a um psicanalista urgentemente, ehehehe.

Espero que o esse mito (Gripen = pulga-alada ou caça leve) seja então enterrado definitivamente.

[]s, Roberto