T50's conventional cone shaped exhaust is not stealthy, hope china doesn't follow

From what I read its just temporary for the T-50 and after finalizing the design they will probably add more stealthier engines.

T-50 was conceived as a defence equipment, to deny space to other stealth fighters. The more intensive action to reduce signture was taken at the front of the plane. Indian aircraft will be different cause they will be attack planes.

Cheers

Pepe

Originally Posted by peperez

T-50 was conceived as a defence equipment, to deny space to other stealth fighters. The more intensive action to reduce signture was taken at the front of the plane. Indian aircraft will be different cause they will be attack planes.

Cheers

Pepe

Even its frontal is not very stealthy. Still having old style cockpit. The materials on the T50 look kind of shiny to be RAM material.

Can u see those blades in this picture?

Which way does a fighter's nose point when the aircraft is flying? Toward the enemies. What's the advantage of a stealthy tail when you are heading toward the enemies? None really, because they wouldn't see your tail at all. So why should Russia/China add extra complication to their design?

Originally Posted by lilzz

Even its frontal is not very stealthy. Still having old style cockpit.

F-35 also has "old style cockpit".

It is highly unlikely that the J-XX won't have conventional exhausts and an "old style cockpit".

Originally Posted by Engineer

Which way does a fighter's nose point when the aircraft is flying? Toward the enemies. What's the advantage of a stealthy tail when you are heading toward the enemies? None really, because they wouldn't see your tail at all. So why should Russia/China add extra complication to their design?

Once the plane inside enemy's territory or pass the enemy ship in the ocean, then those aegis radar can pick up the signature from behind.

Sure, It would be different scenario, if China's J-XX stay inland and only countering intruding stealth fighters.

But if J-XX ever come out from inland and toward the ocean then the back need to be stealthy as well.

#1) There is no evidence that China is following Russian approach. Early wind-tunnel model pictures suggest China is going F-22 route, but latest info suggest a design even more radical design than the T-50.
#2) Russian T-50 is a prototype. We have no evidence that the production aircraft will not have stealthy exhaust.
#3) Russia has gone for less stealth and more maneuverability in their 5th generation design. Even without stealthy exhausts, it may still be a tough customer for the F-22, as some analysts have said.
#4) It's possible that the protoype does not have RAM coating yet. Also, look how shiny this F-22 is:
http://jdlong.files.wordpress.com/20...ptor_large.jpg

Originally Posted by Engineer

Which way does a fighter's nose point when the aircraft is flying? Toward the enemies. What's the advantage of a stealthy tail when you are heading toward the enemies? None really, because they wouldn't see your tail at all. So why should Russia/China add extra complication to their design?


F-35 also has "old style cockpit".

It is highly unlikely that the J-XX won't have conventional exhausts and an "old style cockpit".

The advantages are pretty clear really. It's to avoid falling prey to certain possibilities:

-The enemy won't always be coming from the front.
-The enemies could be stealthed themselves, so there's no way to know if one is always going to be engaging them head-on.
-The enemies could have their own rear stealthed, so conceivably they could discretely leave the battlespace without the other party knowing it.

Originally Posted by Engineer

Which way does a fighter's nose point when the aircraft is flying? Toward the enemies. What's the advantage of a stealthy tail when you are heading toward the enemies? None really, because they wouldn't see your tail at all. So why should Russia/China add extra complication to their design?

My little understanding of stealth tells me that it doesn't matter which part of the plane it is. As long as it's a portion of the plane and it has the tendency to reflect radar signals back to its source, it's not stealthy. So if the tail is not stealthy in design, it could be picked up by detectors.

Plus, you can keep pushing your plane forward, but you never know where your enemy will come from. I still remember in the movie "Black Hawk Down", before the battle, one guy said to his fellow soldiers that "I'm not going to run away from my enemy!" so he took out the metal plate in the back part of his vest to lighten the load. Guess what happened? They were surrounded by enemy and someone shot that guy on the back. Without the metal plate, we all know what would happen to the poor guy... So you want to be as prepared as possible. Especially with something like designing a stealth plane, you have invested so much. You certainly want to be as good as possible and don't want to leave a big potential weakness for your enemy to exploit.

Originally Posted by lilzz

Even its frontal is not very stealthy. Still having old style cockpit. The materials on the T50 look kind of shiny to be RAM material.

Can u see those blades in this picture?


[qimg]http://img31.imageshack.us/img31/8291/89691952.jpg[/qimg]

There's not blades, but a engine cover...

Cheers

Pepe

Originally Posted by peperez

There's not blades, but a engine cover...

Cheers

Pepe

In an old aviation magazine I've read that russians are trying to apply a new type of stealth material for their engine blades. So, maybe it's that.

T50 has abnormally huge inlet. Normally you not suppose to see anything inside directly, but the fact is inlet is so big and open and see things inside is odd to say the least.

Anyway, those looks like the circular blades to me.

My understanding of the T50 is that it is just a prototype. Could the reason behind the large intake due to it (the T50) using an older type of engine at this point?

We haven't seen the JXX yet, but if it is also using older engine for the prototype test phase, wouldn't we also expect it to have large intake also?

Sorry, I have very limited knowledge of engine and intake design. Just putting the above forward for input from someone who have better understanding in this field.

Originally Posted by jowlim

My understanding of the T50 is that it is just a prototype. Could the reason behind the large intake due to it (the T50) using an older type of engine at this point?
.

That doesn't make sense. You mean different form factors for prototype and production model. That would require re-design.

Originally Posted by lilzz

Even its frontal is not very stealthy. Still having old style cockpit. The materials on the T50 look kind of shiny to be RAM material.

Can u see those blades in this picture?


[qimg]http://img31.imageshack.us/img31/8291/89691952.jpg[/qimg]

the blades likely a radar blocker. if you look boeing F-36 ,you also notice the radar blocker.the radar blocker and her inlet was coated with RAM,it disperses the incoming RF..
other aircraft such as EF-2000,F-15SE.J-11B and F-18C also fitted with radar blocker.