Sukhoi PAK FA

[Bhadra]

Well,
Is there are news about the 2-seater/ 1-seater breakups for IAF and what the roles for these two types are going to be?

Nuc China and Pakistan !

 

[Drsomnath999]

has any one got any link or video which claims russian pilots on flankers have done more than 10 G manuveur ,plz post it

 

[p2prada]

And an interesting blog about USAF response to the PAK-FA -

What, Me Worry? - USAF on PAK-FA

Bill Sweetman is a F-35 critic. Not sure how he is now, but he was so earlier.

One of the best technical assessments of the PAK-FA I have found till date -

Sukhoi T50 PAK-FA Assessment

The F-22 has been given superior supersonic performance while the Russians claim otherwise. The PAKFA has been given superior subsonic performance while it is not way behind the F-22 in the supersonic regime. The F-35 has been give inferior supersonic and subsonic performance among all three. So according to the slides, the PAKFA is deemed superior in aerodynamics as it is more or less equal to the F-22 in performance with advantages in slow maneuvering while having an overwhelming advantage against the F-35.

According to USAF F-35 test pilots, a loaded F-35 performs better than the clean F-16 in the subsonic regime. Considering it is better than the F-16, it is bound to be superior to the F-15 as well in the subsonic regime. Again according to USAF pilots, the F-35 shows on par or slightly superior acceleration to the F-22 in the subsonic regime. With a smaller wing, it should make tighter turns than the F-22, which is again a documented fact. None of this actually reflects on the slide.

This slide was made to bash the F-35. That's all.

Pretty interesting observation from Jon Beesley.

VIDEO: F-35 test pilot defends JSF's dogfighting capability - The DEW Line

 

[Anshu Attri]

 

[Kunal Biswas]

 

[ace009]

Is that a rear facing radar sticking out between the engine exhausts of the PAK-FA?
Also, what's up with the 2-piece canopy still?

 

[p2prada]

Is that a rear facing radar sticking out between the engine exhausts of the PAK-FA?

Nobody knows.

Also, what's up with the 2-piece canopy still?

A one piece canopy has nothing to do with stealth though. Quite like how people say PAKFA has issues with stealth in the rear hemisphere because of the engine design as compared to the F-22. Most people do not know that it has nothing to do with stealth, only aerodynamics.

 

[ace009]

Nobody knows.



A one piece canopy has nothing to do with stealth though. Quite like how people say PAKFA has issues with stealth in the rear hemisphere because of the engine design as compared to the F-22. Most people do not know that it has nothing to do with stealth, only aerodynamics.

Actually a one piece canopy (F-22, F-35) IS better for stealth than a two-piece regular canopy (F-15). A two-piece canopy with the frames/ edges made up of composite (F-117, B-2) is almost as good as a one piece canopy. However, a one piece canopy is also good for all round visibility which is why the Americans use it for 5th gen fighters.

 

[Tolaha]

Quite like how people say PAKFA has issues with stealth in the rear hemisphere because of the engine design as compared to the F-22. Most people do not know that it has nothing to do with stealth, only aerodynamics.

Flat nozzles, Saw tooth edges !?

 

[Drsomnath999]

DOES pakfa has radar blockers????
117S

from key pub
The PAK-FA saga Episode 12.0 - Page 28 - Key Publishing Ltd Aviation Forums

well i cant say exactly it has radar blockers or not ,but is this PSed:undecided:

 

[p2prada]

Actually a one piece canopy (F-22, F-35) IS better for stealth than a two-piece regular canopy (F-15). A two-piece canopy with the frames/ edges made up of composite (F-117, B-2) is almost as good as a one piece canopy. However, a one piece canopy is also good for all round visibility which is why the Americans use it for 5th gen fighters.

Not really. It is a flawed notion. The YF-35 prototype and the YF-23 prototype had a two frame canopy.

Yeah. It helps all round visibility.

Flat nozzles, Saw tooth edges !?

Flat nozzles has nothing to do with stealth. Ceramics and RAM painting do.

Saw tooth edges haven't been seen on the PAKFA prototype, perhaps they will be added in time.

The Flat nozzles on F-22 are for supercruise.

 

[Kunal Biswas]

well i cant say exactly it has radar blockers or not ,but is this PSed:undecided:

It is a radar blocker..

 

[Drsomnath999]

It is a radar blocker..

but bro SANCHO says it doent have radar blocker & is PS ed

 

[p2prada]

There are no radar blockers on any of the prototypes. Except for stealth shaping there are no visible stealth optimized designs noticeable on the PAKFA. Perhaps they are keeping the stealth optimized aspects for later.

We don't know what solution the Russians are looking at. Perhaps they believe it is not needed.

Who knows?

 

[Drsomnath999]

There are no radar blockers on any of the prototypes. Except for stealth shaping there are no visible stealth optimized designs noticeable on the PAKFA. Perhaps they are keeping the stealth optimized aspects for later.

We don't know what solution the Russians are looking at. Perhaps they believe it is not needed.

Who knows?

i think u may be right as currently it uses a derivative of Su 35 engine 117S & SU 35 engine doent has radar blockers & why would russians fit a radar
blocker on a protype engine .Well it may have radar blockers in future engine
& also u compare Su 30 mki engine intake with pakfa , for instance assume it has radar blockers in it's final engine then still it would have a definite reduction in it's Radar return from it's engine

COMPARISION OF SU 30 MKI AIR INTAKES & PAKFA AIR INTAKE

1) SU 30 MKI AIR INTAKE:

one can clearly see the entire circumferance of Engine compressor face & it has no radar blockers

2) PAKFA AIR INTAKE:

now see the pakfa air intake only 1/3rd of engine compressor face is visible

& one can see radar blockers

SO it's defintely clear that PAK FA air intake would reflect considerably less 1/3 rd of radar waves as reflected by SU 30 mki air
intake .

 

[Payeng]

]

Front side it is marked 52 and at rear it is marked 51 why?? anyone?

 

[p2prada]

The number at the tail is called the tail number and indicates the number of aircraft produced. Currently tail numbers exist for 3 aircraft, 50, 51 and 52. The one you posted is the second prototype.

The number at the nose is called the Bort number and is usually meant to reveal the regiment it belongs to, air base etc. I guess the current number is related to the Knaapo air field. I am not entirely sure though.

Other than that the Russians love to fvck around with our little minds. For eg: This is the same prototype but with a different Bort number.

So, I guess the bort number changes depending on some factors. Tail number is fixed.

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[Kunal Biswas]