Forum: Technology

inf1kek wrote:

"That means that while a Su-30MKI would be as visible to enemy radar as a metal object 5 metres X 4 metres in dimension."
ahhahahaha, metal object 5x4 meters? = 20m2 RCS ? lol? did he even know what RCS means?

Su-30's average frontal RCS is ~20m2.

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inf1kek wrote:

Lol, that was totaly fake.

first - there was NO indians on first roll-out to the airport.

Really? You know 100% for fact there were no Indians there? I'm impressed Laughing

There are a couple of interesting wind tunnel photo's kicking about the web...

http://www.airforceworld.com/fighter/gf ... k_fa_1.jpg
http://www.airforceworld.com/fighter/gf ... k_fa_2.jpg

Pin badge given out by Sukhoi at MAKS2009:
http://img10.imageshack.us/img10/3425/0 ... mg0127.jpg

Andy

Andy

inf1kek wrote:

first - there was NO indians on first roll-out to the airport.

well, they actually were - and it's not their first vizit to KnAAPO
what was taxying there in front of them, wasn't actually even a flight prototype, but so-called NKS, call it advanced test article. while it was seen and photographed by many, even non-authorised personell and civils from factory airfield neigborhood, no photos will appear till the first flight on certain reasons

0,5 sq.m. RCS is BS from the depth of Indian journalist brains, because talking of real RCS of a/c that even didn't fly yet, apart of computer models and scale model tests at RCS range, is nonsense

first flight vehicle maiden flight is postponed again till Feb. or even March, and problems are not only paint job

anyway, can't wait to see the her flying

boff180 wrote:

There are a couple of interesting wind tunnel photo's kicking about the web...

http://www.airforceworld.com/fighter/gf ... k_fa_1.jpg
http://www.airforceworld.com/fighter/gf ... k_fa_2.jpg

these are quite an old TsAGI WT models (early 90s), which may have - or may not at all (being so called 'generic vehicles') - be realated to very yearly PAK FA iteration

http://www.lifenews.ru/news/10424
First flight: 29.01.2010

Quote:

For reviews witnesses tests silhouette T-50 more closely resembles an American multirole fighter Raptor F-22

exec wrote:

http://www.lifenews.ru/news/10424
First flight: 29.01.2010

How news are made:

BS from yellow newspaper <- reprint from Russian site translated version <- Brazilian aviation blog <- Brazilian aviation magazine (Brazilians can't understand how you can make maden flight on weekend, and January working days end on 29th, so - voila - we getting the date!) <- Russian Interfax AVN news agency (that's one respected one, in fact, stating that according to sources in industry, maiden flight will happen before the end of January)

Sukhoi web-site reprinted Interfax news, that should be confirmation that source was correct on schedule.

Decision of first flight date has been taken after news was published, actually.

Thursday is a day.

Could someone please enlighten me if it is correct that the 117 engine that will power the PAK-FA is only essentially a 4th gen engine and also if it's true to say that the 117 is far from being on a par with the F119 engine that powers the F-22?

As far as I'm aware, there is a 5th gen in development but initial aircraft will be powered by a variant of the Saturn.

Andy

yes...fifth generation engine industry proposals are due just Q1, 2010
it doesn't mean that there were not previous R&D works, but F119 performance is somewhat very far, far perspective
Saturn 117S (try to remember its serial designation: AL-41F-1S) on Su-35 is some of contradictory and unfinished AL-41F (for much larger MFI fighter) technology mated with old faithful AL-31F, while Saturn's 117 (no suffix), now being tested on T-10-10 '711', is more powerful version of 117S, a prototype of 5th gen engine
117 will power T-50 testbed, i.e. it will not unlike YF119 powering YF-22

interesting article and interview on subject, Google language tools are of help
http://www.kommersant.ru/doc.aspx?DocsID=833099
http://www.aviaport.ru/news/2009/11/12/185034.html

Russian fifth generation aircraft prepares for its maiden flight. The test flight will reportedly take place on January 28 or January 29 at the air base in the city of Komsomolsk-on-Amur, Interfax news agency reports.

“A very important event in the history of the Russian aircraft-making is about to take place. First runs showed very good results. We decided to conduct the first flight here, not in Moscow,” Vyacheslav Shport, the governor of Russia’s Khabarovsk region said.

Only a few people – designers, engineers and test pilots - have seen the new Russian fighter so far. It was said, however, that the plane would develop the speed of 2,100 km/h and fly at the distance of up to 5,500 kilometers.

The first runs of the new fifth generation fighter jet took place in December of 2009 in Komsomolsk-on-Amur.

The new plane, known as T-50 or PAK FA, was developed by Sukhoi design bureau. The date of the maiden flight has been changed several times. Vice Premier Sergey Ivanov said in December 2009 that the new jet would take off before the end of the year. Afterwards, it was said that the tests had been pushed back to early 2010, but the date had not been exposed, Itar-Tass said.

The current prototype is Sukhoi's T-50 is intended to replace the MiG-29 Fulcrum and Su-27 Flanker in the Russian inventory. A fifth generation jet fighter, it is designed to directly compete with the American F-22 Raptor and F-35 Lightning II.

The new jet will be able to take off and land on short runways, 300-400 meters long. The fifth generation aircraft will fly at large distances with multiple refueling in the air.

The PAK FA will use on its first flights 2 Saturn 117S engines (about 14.5 tons of thrust each). The 117S is an advanced version of the AL-31F, but built with the experience gained in the AL-41F program. The Saturn AL-41F powered the Mikoyan MFI fighter (Project/Article 1.44). Later versions of the PAK FA will use a completely new engine (17.5 tons of thrust each), developed by NPO Saturn or FGUP MMPP Salyut.

Russia ’s Air Force will have the new fighter jet in 2015. India’s Defense Ministry already plans to purchase 250 such planes from Sukhoi.

© 1999-2009. «PRAVDA.Ru».

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Elite 1K Joined: May 26, 2005 - 08:39 PM Posts: 1496

What is this doing in the F-35 forum?

Still not holding my breath.

I will believe it once somebody gets some real pics of it- or when it makes it on youtube.

Whistle

Forum: Technology

Sukhoi T-50 PAK-FA