Fórum Defesa Brasil

Penguin escreveu:Luís, a questão eh que as capacidades do PAK debatidas em fóruns são muitas delas não baseadas no que o fabricante diz, mas naquilo que o fabricante não diz. Aí cabe tudo e o debate fica virtualmente impossível.

Até agora os russos não esclareceram qual o conceito deles para o combate BVR em um cenário com adversários com caças furtivos. Eles devem ter, com certeza. Eu duvido que tenha a ver com radares banda X. E há muitas especulações acerca do radar banda L. O certo eh que ele será utilizado para IFF em grandes FOV, curiosamente e provavelmente de forma similar ao Gripen E:

Advanced IFF

By contrast, the Raven employs an angled antenna mounted on what is, in effect, a rotating drum. This offers significant advantages, but has also required the solving of some technological hurdles. One of them is the development of a sophisticated 360-degree joint, derived from the oil industry that allows the passage of radio frequency signal, power and coolant through it as the drum mounting rotates.

Because the antenna rotates, it cannot mount IFF aerials, as they would change polarity with the rotation. To overcome this issue Selex Galileo has devised the SIT426 active e-scan Mode 5/S IFF system, which it claims is the most advanced in the world. It is the first IFF to use conformal e-scan arrays, three of which are mounted around the fixed portion of the nose behind the rotating antenna.

This arrangement poses its own issues, such as the requirement to sensor-fuse data from the radar and IFF to ensure accurate alignment between the two. In the Captor-E the radar and IFF share the same antenna, so do not require data fusion. In the Gripen installation, however, the fact that the IFF is separate allows it to work in close conjunction with other sensors, such as infrared search-and-track and electronic support measures.

The biggest advantage of the system is its field of regard, which easily matches that of the radar. The side-facing arrays allow aircraft to be interrogated from a parallel track, which is of particular use in a cross-border air defense scenario and is something of which more traditional IFF installations are incapable.

http://www.ainonline.com/aviation-news/ ... scan-drive

Artigo muito interessante: Stealth é necessário, mas não suficiente: adicione guerra eletrônica, inteligência e táticas
http://www.aereo.jor.br/2017/08/05/stea ... e-taticas/

É apresentado um gráfico para ilustrar os conceitos básicos de detecção de uma aeronave:

Podias replicar no tópico do FX - Gripen? FANTÁSTICO!!!

Uma foto mais linda que a outra.


abs.

O comandante da Força Aérea Russa confirmou: o T-50 agora se chama oficialmente Su-57!

https://tvzvezda.ru/news/opk/content/20 ... 6-axvl.htm

Russia’s Defense Ministry to Sign Contract for 5th-Generation Fighter Jets in 2018

(Source: TASS; published Aug. 30, 2017)

MOSCOW --- Russia’s Defense Ministry expects to sign a contract for a pilot batch of fifth-generation Su-57 fighter jets next year and troops should receive these cutting-edge aircraft in 2019, Deputy Defense Minister Yuri Borisov said on Wednesday.

The deputy defense minister made this statement at a press conference devoted to the results of the Army-2017 international military and technical forum.

"The forum’s visitors displayed great interest in the latest Russian aircraft, including Su-34 and Su-35 planes, and also the cutting-edge fifth-generation fighter jet which has been named as the Su-57," the deputy defense minister said.

"We are now considering signing a contract for the delivery of a pilot batch of these fighter jets in 2018 with their dispatch to the troops in 2019," he said.

The Su-57 (PAK FA) took to the skies for the first time in 2010. As was reported earlier, the experimental design work on the cutting-edge fighter jet should be completed in 2019 and its deliveries to the troops should begin at that time. As United Aircraft Corporation CEO Yuri Slyusar said, the pre-production batch will consist of 12 such planes.

Russian Aerospace Force Commander-in-Chief Viktor Bondarev said earlier that the deliveries of fifth-generation fighter jets to aviation units would begin from 2018.

The Army-2017 international military and technical forum was held in Kubinka outside Moscow on August 22-27.


(EDITOR’S NOTE: Su-57 is the new designation for the production variants of the T-50 fighter.)

-ends-
http://www.defense-aerospace.com/articl ... -year.html

Agora vai.

abs.

Mais um protótipo daquele que ouvi falar: T-50-11.

Latest prototype of Russia's 5th gen fighter jet Su57 codenamed T-50-11 (mass production-ready airframe) spotted flying to test facilities

O tom da camuflagem mudou um pouco. Ficou mais escuro, meio metálico-fosco...

Só não entendi isso de pendurar aqueles trambolhos, não tem bay não? Porque assim já era pra furtividade.

Será que se a gente se juntar aqui e fizer uma vaquinha os russos não vendem baratinho esse lote de protótipos assim que a produção deles estiver a toda?

Ao menos iríamos poder dizer que "yes, nós tem Su-57!"

abs.

Túlio escreveu:Só não entendi isso de pendurar aqueles trambolhos, não tem bay não? Porque assim já era pra furtividade.

Podem ser tanques de translado. Ou não. Ou então não existe pilone molhado no center line. Ou o bay não foi projetado para levar tanques adicionais.... pode ser muita coisa.

abs.

Túlio escreveu:Só não entendi isso de pendurar aqueles trambolhos, não tem bay não? Porque assim já era pra furtividade.

São tanques de translado. Foram usados no pequeno voo de 6 mil quilômetros da fábrica no extremo oriente até a região onde foram tiradas as fotos.



E quem no mundo carrega combustível no bomb bay? Pelo contrário, o bomb bay rouba espaço interno que seria usado por tanques de combustível.

Essa regra vale para todos:

Mas murikano podeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee