J-10 Thread III (Closed to posting)

[FriedRiceNSpice]

F-22 has fixxed inlet, J-10A and Flankers have variable-ramp intakes. Raptors use an angled S-shaped intake duct that hides the engine to minimize radar return. I would not call such an intake "conventional."

 

[Munir]

Without going further... I am extremely shocked that JF17's arebough on loan from China... What can we indeed expect from more expensive J10? Let us wait and see what 2014 will bring. I think it will be not much looking at what Pak is going to get in 2010 and what the finances are after 2010. Last thing we heard was PAF had to sell land cause it is forced to build Jacobad for the new f16's... I do not know what our "democratic" elected government thinks but it surely makes it unrealistic to shop for expensive items.JF17 was delayed for 2 years. Il78 are delayed for 1 year. Erieye is delayed for 6 months. We doubt that F16's will ever be delivered...Let us move the focus whether China sells latest or not. I think it will have its own versionslike we see their K8 is different (inferior) then K8P. We have clue whether their FC1-06 is more or less then the JF17-09-110... And wesurely haveno clue what will j10B and FC20... So many variables to be sorted...

 

[latenlazy]

Without going further... I am extremely shocked that JF17's arebough on loan from China... What can we indeed expect from more expensive J10? Let us wait and see what 2014 will bring. I think it will be not much looking at what Pak is going to get in 2010 and what the finances are after 2010. Last thing we heard was PAF had to sell land cause it is forced to build Jacobad for the new f16's... I do not know what our "democratic" elected government thinks but it surely makes it unrealistic to shop for expensive items.JF17 was delayed for 2 years. Il78 are delayed for 1 year. Erieye is delayed for 6 months. We doubt that F16's will ever be delivered...Let us move the focus whether China sells latest or not. I think it will have its own versionslike we see their K8 is different (inferior) then K8P. We have clue whether their FC1-06 is more or less then the JF17-09-110... And wesurely haveno clue what will j10B and FC20... So many variables to be sorted...

It's simple, the one constant is money. PAF simply doesn't have the money or much else to leverage for better products.

 

[Quickie]

F-22 has fixxed inlet, J-10A and Flankers have variable-ramp intakes. Raptors use a S-shaped intake duct specially designed to minimize radar return. I would not call such an intake "conventional."

By conventional inlet, I meant the "external part" of the conventional inlet as opposed to the "bump"-shaped DSI inlet. As for the internal duct, the J-10 also has a somewhat S-shaped inlet duct. What I am trying to say is that the round bump in front of a DSI inlet is nothing stealthy at all. That's why you don't see a true stealth fighter like the F-22 having DSI intake.

Now, if only they can manage to solve the problem of inlet airflow like they did with the F-22, without having to put in place a DSI intake, the J-10 can be even more stealthy.

 

[FriedRiceNSpice]

It is certainly possible to design a stealthier fixed inlet for the J-10, but having a fixed inlet results in compromises in high speed performance as well as top speed. Although the maximum speed of the Raptor is classified, it is questionable whether the plane could exceed Mach 2.0. DSI bumps are very stealthy as well, as shown by the F-35. The fact that overall the F-35 is slightly less stealthy than the F-22 has nothing to do with the inlets.

 

[Baibar of Jalat]

Any news on when gonna be inservice or does anyone have an educated guess?


The developers need to bring J 10B project inservice without delay, because PLAAF does not want to face advanced jets that are currently being trialled by neighbouring airforces, without having a good counter.

 

[Quickie]

One way to reduce RCS for an DSI intake (including the "bump") is to have them made of composite, which, I believe, is what they are doing already.

 

[Wolverine]

One way to reduce RCS for an DSI intake (including the "bump") is to have them made of composite, which, I believe, is what they are doing already.

The usual aviation composites don't reduce RCS, unless they're specifically made for this purpose. The DSI bump does not increase RCS, not in the frontal aspect at any rate. And maybe not even for a radar scanning it from the ground.

 

[Quickie]

The DSI bump does not increase RCS, not in the frontal aspect at any rate. And maybe not even for a radar scanning it from the ground.

Sorry, I don't agree with that, but of course you entitled to your own opinion. Let's not continue arguing about it.

 

[Wolverine]

Sorry, I don't agree with that, but of course you entitled to your own opinion. Let's not continue arguing about it.

It's a good thing the truth is totally independent of what you agree or do not agree with.

It's a simple fact that the shape of the DSI bump prohibits nearly all radar waves from returning to the emitter source (if that source is frontal aspect). The concept is the same as that used by ship designers when they slope the sides of ships to prevent radar waves from returning to the source emitter, except that the effect here is even more dramatic due to the higher angles of incidence.