Shenyang FC-31 / J-31 Fighter Demonstrator

drunkmunky said:

Providing factual information is something I appreciate. With your contribution in addition to Mig-29, I've googled a lot of different military related topics. I want to comment however that providing facts is one thing, and shoving it down our throats is another.

As informative as Mig-29 is, I've had to put him on my Ignore list as a result of his consistent and repetitive off-topic postings. I heed you not to do the same.

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If you can provide some examples of where I shoved facts down your throat I will glad refrain from that type of conduct. Fair enough?

NikeX said:

Right back at you: Do you have any evidence that DF-21D has been tested against a target like it was designed for? And please check up on the operational profile of the Pershing before you make another foolish and uninformed stated like "...Pershing couldn't even match the DF-21D in speed and guidance system during rentry of the atmosphere flight...."

".....The G&CC contained an inertial guidance system that could guide the missile on-target in a purely ballistic mode as a back-up. The primary guidance system was a Goodyear Aerospace active radar guidance system. Using radar maps of the target area, the Pershing II had a reported accuracy of about 30 metres (100 ft) circular error probable.[according to whom?]

The reentry vehicle (RV) was structurally and functionally divided into three sections: the radar section (RS), the warhead section (WHS), and the guidance and control adapter (G&C) section. Quick access connectors made the all three of the RV sections replaceable at the launching site.

The radar section consisted of the radar unit with the antenna enclosed in an ablative radome. The function of the radar unit was to transmit radio waves to the target area, to receive altitude and video information in return, and to send the detected video and altitude data to the digital correlator unit (DCU) located in the G&C section.

From:

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That terminal radar system sounds exactly what the DF-21D is trying to do with its guidance trying to hit a carrier doesn't it? Now do you understand why I say that the father of the DF-21D is the Pershing 2?

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Uhh the Pershing doesn't even travel at a Mach 10 speed and range of 2,000 miles like the DF-21D. Pershing speed is Mach 8 at operation al range of ONLY 460 miles. YAWN...wake me up and when the Pershing can reach that same range as the DF-21D.

NikeX said:

If you can provide some examples of where I shoved facts down your throat I will glad refrain from that type of conduct. Fair enough?

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What's the matter Gambit? Did their words hurt your little sensitive feelings? Get over it...your Chinese hating is showing big time.

Equation said:

What's the matter Gambit? Did their words hurt your little sensitive feelings? Get over it...your Chinese hating is showing big time.

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The guy that claims DNA is behind innovation complains about conduct from people he sees as genetically inferior? The guy takes credit for someone elses innovation where he has shown none himself wants respect? He's a comedian also.

DNA plays no part in innovation since people with higher IQ is not always more innovative to those of lower IQ. In fact the opposite may be true since lower IQ people usually have more of the other qualities like drive and persistence which is important to being innovative.

Quickie said:

DNA plays no part in innovation since people with higher IQ is not always more innovative to those of lower IQ. In fact the opposite may be true since lower IQ people usually have more of the other qualities like drive and persistence which is important to being innovative.

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IQ is a social construct anyways. Psychologists and Cog Scientists can't even agree on a fixed definition and metric of intelligence.

Engineer said:

The S-47 is another project where most of the work has already been done by the Soviet Union. The project began in 1983, and uses researches dated as far back as 1940. .

Whether S-duct as a concept is new is also entirely irrelevant, as it doesn't alter the fact that Sukhoi was unable put such a design on the PAKFA.


X-32 never made it pass being a technology demonstrator either.


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PAKFA does not need S ducts the PAKFA patent says it, see:

функцию сверхманевренности (Lockheed Martin F/A-22 Raptor: Stealth Fighter. Jay Miller. В качестве недостатков известного самолета можно указать следующее: - невозможность управления в каналах крена и рысканья при полете на малых - скоростях, поскольку двигатели расположены вплотную друг к другу, что не not позволяет создать достаточный для управления момент - расположение двигателей вплотную друг к другу делает невозможным - расположение в фюзеляже грузовых отсеков;изогнутая форма каналов воздухозаборников требует увеличения их длины, и, - следовательно, массы самолета

feature super maneuverability (Lockheed Martin F/A-22 Raptor: Stealth Fighter. Jay Miller. 2005). In 2005).As a well-known disadvantages of the aircraft, you can specify the following: Inability to control the channels roll and yaw when flying at low speeds, because the engines are located close to each other, which does not allows you to create an adequate management time; The engines close to each other makes it impossible location in the fuselage cargo compartments; - Curved air intake duct requires an increase in their length, and; hence, the mass of the aircraft





S-37 is not a Soviet design, is Russian, because the funding was provided by Sukhoi after the Soviet Union collapsed and the first flight was in 1997, the first prototype was built in 1996 well ahead in time after the soviet union collapsed and in modern Russia.

Sukhoi`s ability to build S ducts and weapons bays is evident in fact the designers are the same from the Soviet Union to Russia because they only changed nationality

Sukhoi by 1990 was just studing models, it was much later they built and finish the project well into the 1990s with sukhoi`s own money of the sales of export Su-27s, like those exported to China to put an example.

By the way Mikhail Simonov was the head designer of the program and he was Russian

MiG-29 said:

PAKFA does not need S ducts the PAKFA patent says it, S-37 is not a Soviet design, is Russian, because the funding was provided by Sukhoi after the Soviet Union collapsed and the first flight was in 1997

Sukhoi`s ability to build S ducts and weapons bays is evident in fact the designers are the same from the Soviet Union to Russia because they only changed nationality

Sukhoi by 1990 was just studing models, it was much later they built and finish the project well into the 1990s with sukhoi`s own money of the sales of export Su-27s, like those exported to China to put an example.

By the way Mikhail Simonov was the head designer of the program and he was Russian

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The S-37 project started in 1983, meaning it is not a Russian design but a Soviet one. The original plan called for the prototype to be built in 1991, but by that time Soviet Union collapsed. Russia merely wrapped out what Soviet didn't finish, which doesn't alter the fact that most of the work was done by the Soviet Union.

Soviet having the ability to design and implement S-ducts does not mean Russia is able to do the same. The use of straight inlet with variable geometry ramps shows Sukhoi simply adopted the design on the Su-27. This is the simplest method for Sukhoi to put an aircraft in the air in the least amount of time possible. A sophisticated design such as an S-duct requires a lot more work, and the modern day Sukhoi neither have the resources or capabilities to overcome such challenge.

Engineer said:

The S-37 project started in 1983, meaning it is not a Russian design but a Soviet one. The original plan called for the prototype to be built in 1991, but by that time Soviet Union collapsed. Russia merely wrapped out what Soviet didn't finish, which doesn't alter the fact that most of the work was done by the Soviet Union.

Soviet having the ability to design and implement S-ducts does not mean Russia is able to do the same. The use of straight inlet with variable geometry ramps shows Sukhoi simply adopted the design on the Su-27. This is the simplest method for Sukhoi to put an aircraft in the air in the least amount of time possible. A sophisticated design such as an S-duct requires a lot more work, and the modern day Sukhoi neither have the resources or capabilities to overcome such challenge.

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haha look you just say ilogic things, Simonov was the head designer of Su-27 in the 1980s, he was the dead designer of Su-47/S-37 in the 1990s, same head engineer, same brain, as most of personal of Sukhoi.

S ducts are not new, what happens is you simply think they are new, S ducts are even found in aircraft like F4D Skyray of 1950s, they are not new at all, even in fighters like Saab Drakken
[video=youtube;IR59InDwL0U]http://www.youtube.com/watch?v=IR59InDwL0U[/video]
[video=youtube;NJ8IJQmCt18]http://www.youtube.com/watch?v=NJ8IJQmCt18[/video]

So they are not new at all, S-37 have them too, PAKFA uses straight ducts because it reduces weight and the air provided to the engine is of better quality with less turbulances and with better pressure recovery.


Stealth aircraft can use S ducts like the Chinese jets J-20 or J-31 or straight ducts like X-32 and PAKFA, you simply follow internet myths without even care about if S ducts have some troubles, and they do, however aircraft design is a compromise and up to a level a gamble, according to Russian statements PAKFA is doing well in performance.

Equation said:

What's the matter Gambit? Did their words hurt your little sensitive feelings? Get over it...your Chinese hating is showing big time.

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Who is Gambit?