Sukhoi PAK FA

gadeshi

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Why PAK fa dont have the serrated edges around the radome and around the engine area. Isn't it an important aspect around stealth. Is it due to aerodynamic inefficiency.

F22 radome and the black regions.



F35

Ragged ("saw tooth") edges are required on opening parts and covers when those parts and covers are made of different material than the surrounding of the hatch and bay it covers. In the other places they are not required.
T-50 has saw tooth around radar dome and on the opening hatches but those "tooth" are big enough to not to look like "tooth" :)
 

Pulkit

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View attachment 6473

At least 154 FGFAs are being negotiated !!
Honestly I have my doubts .
In my view point the discussion will be focused on supplying current state T-50 to India and later shifting or moving to FGFA.

it could be 2-3 squad of t-50 till FGFA is matured.

Being a partner India need not fix a number it can be increased or decreased mutually .

Cost per unit can be finalized based on the price of T-50 in production and by putting a minimum order cap.
 

gadeshi

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Honestly I have my doubts .
In my view point the discussion will be focused on supplying current state T-50 to India and later shifting or moving to FGFA.

it could be 2-3 squad of t-50 till FGFA is matured.

Being a partner India need not fix a number it can be increased or decreased mutually .

Cost per unit can be finalized based on the price of T-50 in production and by putting a minimum order cap.
Calm down, there are LRIPs only until 2020.

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Bahamut

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http://ria.ru/interview/20151112/1319135062.html

- Tell us, please, what the opportunity to acquire the aircraft of the fifth generation PAK FA with the latest electronic systems KRET?

- KRET already talked about the features of complex EW "Himalaya" and strapdown inertial navigation system (SINS) installed on the PAK FA. Now we want to draw attention to a new radar, which is designed for the PAK FA. This radar has several ranges of work and will work not only in the forward hemisphere - it will also be a number of opportunities for the circular scan, so that the pilot has complete information about a radar environment to without taking action on the maneuvering could see what was happening on the left, right, back in the automatic mode with the projection on the helmet and interactive glass cockpit.

According to their purpose PAK FA aircraft does not just apply to the aircraft of the fifth generation - it embodied a fundamentally new ideas. That is, it is one hundred percent digital aircraft that not only provides information to the pilot on request, but also provides full information support for the pilot - for this aircraft is equipped with a "smart skin". By "smart skin" we understand that many of the surface of the aircraft are versatile antenna systems that provide the application of the integrated use of all resources of the aircraft. First of all we are talking about the fact that a complex radar system can function, and means of passive intelligence and means of active radar and electronic warfare specialist.

For example, a complex electronic warfare "Himalayas" at certain points in space to protect the use of radar energy resource. All this is done to ensure that the aircraft had an opportunity to review the circular space in passive and active modes, was able to provide absolute protection and round to communication and control systems, electronic warfare aircraft covered all radii. That's how it complexed possibilities of different electronic systems, making the aircraft the most secure and invulnerable. Communication systems can also be used in protected mode - to form the transmission of information is not round, but only in the direction of the points to which he has to lose one or the other flight information, get a job or other information values. This is done by including features to maximize the use of weapons by aircraft, to maximize opportunities of electronic security. We can say that the PAK FA everything works in the general contour of the digital control system of the aircraft and to provide maximum comfort and a maximum degree of control for the pilots.

- Whether to begin deliveries to the Armed Forces of the first batch of special containers through which the Su-34 aircraft converted into electronic warfare?


- The first batch will be delivered in November this year. On the wingtips of the Su-34 basic kit is installed EW multifunctional complex "Khibiny-10B". This year, the Defense Ministry will receive the first batch of installed under the fuselage of the so-called container incremental staff, to turn the standard Su-34 dedicated aircraft electronic warfare, which will be able to protect not only themselves, but also to provide an effective electronic countermeasures radar systems and anti-aircraft missile systems, long-range aircraft radar surveillance, and so on, that is the protection of aircraft and other groups.

Thus, the Su-34 will be able not only combat aircraft but also a special plane of electronic warfare.
 

gadeshi

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http://ria.ru/interview/20151112/1319135062.html

- Tell us, please, what the opportunity to acquire the aircraft of the fifth generation PAK FA with the latest electronic systems KRET?

- KRET already talked about the features of complex EW "Himalaya" and strapdown inertial navigation system (SINS) installed on the PAK FA. Now we want to draw attention to a new radar, which is designed for the PAK FA. This radar has several ranges of work and will work not only in the forward hemisphere - it will also be a number of opportunities for the circular scan, so that the pilot has complete information about a radar environment to without taking action on the maneuvering could see what was happening on the left, right, back in the automatic mode with the projection on the helmet and interactive glass cockpit.

According to their purpose PAK FA aircraft does not just apply to the aircraft of the fifth generation - it embodied a fundamentally new ideas. That is, it is one hundred percent digital aircraft that not only provides information to the pilot on request, but also provides full information support for the pilot - for this aircraft is equipped with a "smart skin". By "smart skin" we understand that many of the surface of the aircraft are versatile antenna systems that provide the application of the integrated use of all resources of the aircraft. First of all we are talking about the fact that a complex radar system can function, and means of passive intelligence and means of active radar and electronic warfare specialist.

For example, a complex electronic warfare "Himalayas" at certain points in space to protect the use of radar energy resource. All this is done to ensure that the aircraft had an opportunity to review the circular space in passive and active modes, was able to provide absolute protection and round to communication and control systems, electronic warfare aircraft covered all radii. That's how it complexed possibilities of different electronic systems, making the aircraft the most secure and invulnerable. Communication systems can also be used in protected mode - to form the transmission of information is not round, but only in the direction of the points to which he has to lose one or the other flight information, get a job or other information values. This is done by including features to maximize the use of weapons by aircraft, to maximize opportunities of electronic security. We can say that the PAK FA everything works in the general contour of the digital control system of the aircraft and to provide maximum comfort and a maximum degree of control for the pilots.

- Whether to begin deliveries to the Armed Forces of the first batch of special containers through which the Su-34 aircraft converted into electronic warfare?


- The first batch will be delivered in November this year. On the wingtips of the Su-34 basic kit is installed EW multifunctional complex "Khibiny-10B". This year, the Defense Ministry will receive the first batch of installed under the fuselage of the so-called container incremental staff, to turn the standard Su-34 dedicated aircraft electronic warfare, which will be able to protect not only themselves, but also to provide an effective electronic countermeasures radar systems and anti-aircraft missile systems, long-range aircraft radar surveillance, and so on, that is the protection of aircraft and other groups.

Thus, the Su-34 will be able not only combat aircraft but also a special plane of electronic warfare.
Yeah, I have posted it in Russian in the Technology Evolution threed.

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gadeshi

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@gadeshi any idea what kind of RAM Anti-radar coating/ paint future T-50 variants will have i have heard from forum key pub that T-50-6-2 and -8 will take long due to Stealth Paint application and RCS testing i didn’t get what people are saying in this link http://forums.airforce.ru/matchast/4618-t-50-a-7/#post127717
There is no "stealth paint".
All the RAMs are included into skin and internal structural bones as one or several layers in composite materials "sandwich". There are some parts (a few of them) made from RAMs completely.
"Stealth paint" is dielectrical top coat that makes plane surface uniform from RF X band perspective.
There is also a "stealth scotch tape" to seal connection gaps between openable hatches and panels.
 

Shirman

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"Stealth paint" is dielectrical top coat that makes plane surface uniform from RF X band perspective..
So I wanna ask that like J-20, F-35 and F-22 does PAKFA also intends to include them in future ...........and does PAKFA, RUAF in the future have another special 5th Gen paint scheme other than Blue/white "Splinter" and Black and white "shark camo" (American term)
There is also a "stealth scotch tape" to seal connection gaps between openable hatches and panels.
So does PAKFA includes such tape paint too.......
 

Bahamut

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Any news about the plasma stealth technology for PAKFA ?:biggrin2:
 

gadeshi

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So I wanna ask that like J-20, F-35 and F-22 does PAKFA also intends to include them in future ...........and does PAKFA, RUAF in the future have another special 5th Gen paint scheme other than Blue/white "Splinter" and Black and white "shark camo" (American term)

So does PAKFA includes such tape paint too.......
PAK FA has structural included RAMs for sure. If T-50 will have topcoat or not and what colour will it be we will see when T-50-6-2 will fly.

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gadeshi

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Any news about the plasma stealth technology for PAKFA ?:biggrin2:
There are some rumors about plasma emitters in air intakes before engine compressors, but not confirmed yet.

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Chinmoy

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There is no "stealth paint".
All the RAMs are included into skin and internal structural bones as one or several layers in composite materials "sandwich". There are some parts (a few of them) made from RAMs completely.
"Stealth paint" is dielectrical top coat that makes plane surface uniform from RF X band perspective.
There is also a "stealth scotch tape" to seal connection gaps between openable hatches and panels.
That's right. This is a general misconception that there is something like Radiation Absorption Material or Paint. But in reality there is nothing like this in practical. Its only a composition which does decrease the RCS of a body and is as effective as the whole structure of the system.
But I do have a question here. We all do know that RADAR is a form of energy and its the thumb rule that, 'Energy can neither be created, nor be destroyed'. So my question is, if these RAM does absorb certain frequencies as published, then it must emit it in one form or another. Then in what sort of form these are emitted? Heat or any other form?
 

gadeshi

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That's right. This is a general misconception that there is something like Radiation Absorption Material or Paint. But in reality there is nothing like this in practical. Its only a composition which does decrease the RCS of a body and is as effective as the whole structure of the system.
But I do have a question here. We all do know that RADAR is a form of energy and its the thumb rule that, 'Energy can neither be created, nor be destroyed'. So my question is, if these RAM does absorb certain frequencies as published, then it must emit it in one form or another. Then in what sort of form these are emitted? Heat or any other form?
RAMs do not absorb RF energy in a generic point of view. They create special conditions in what RF waves re-reflect between several RAM covered surfaces or between two or several RAM layers inside a bone or skin panel. That leads to wave energy suppression and dissolation completely or dosens of times before it will be reflected back to enemy radar.
Dielectric topcoat and scotch tape remove raduation reflection spikes created by a join lines of the panels made from different materials.

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Chinmoy

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RAMs do not absorb RF energy in a generic point of view. They create special conditions in what RF waves re-reflect between several RAM covered surfaces or between two or several RAM layers inside a bone or skin panel. That leads to wave energy suppression and dissolation completely or dosens of times before it will be reflected back to enemy radar.
Dielectric topcoat and scotch tape remove raduation reflection spikes created by a join lines of the panels made from different materials.

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Got it. In layman term, the waves just keep on bouncing in the layer of the RAM due to its structure and doesn't return back to the receiver. But this in return should create heat in the surface, or is it just my theory?
 

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