J-10 Thread III (Closed to posting)

[crobato]

The problem of long or wideband RF is that the pulse length has to be at least 1-1/2 times longer than the wavelength. So if you got long wavelength, you need even longer pulse.

That lowers your resolution.

So what pulse compression does is to take the long pulse, then using frequency modulation, add a spike in it to create a pulse within a pulse, like multiple small pulses within a long pulse. That improves the resolution against the subject.

 

[Deino]

Hmmm ... real or not (to) real ??? That's the question.

Deino

 

[Twix101]

If it's real, they seems to have implemented a more discrete design, the nose has obviously Gaussian shapes.

 

[AssassinsMace]

The question of it being real or not is sort of moot since a lot of "authorities" on this matter seem to agree the J-10B exists. It looks real enough. The angle the photo was taken is probably from a common position. If the photographer was officially sanctioned, the PLAAF probably loves that angle. There's a FC-1 pic from about the same angle and it probably is the best shot of it I've seen. And look at it... the J-10B is a fine looking bird. Now if the PLAAF would just give it a paint job in the same respect.

 

[crobato]

Hmmm ... real or not (to) real ??? That's the question.

Deino

Interesting to see the two white spots appearing near the tail once again. Those bumps were only seen among the earliest J-10s and gone ever since.

Addendum: Patches underneath the new plane --- indication of new materials used in those areas?

 

[Munir]

Interesting to see the two white spots appearing near the tail once again. Those bumps were only seen among the earliest J-10s and gone ever since.

Addendum: Patches underneath the new plane --- indication of new materials used in those areas?

Crobato,

those two are airbrakes. Same as two on the upper side... They are and were always there.

 

[plawolf]

Hmmm ... real or not (to) real ??? That's the question.

Deino

Looks the the belly of the J10 is also a little fatter now. Just look at the inner most actuators. In the J10A, they stand out in their own pods, but the ones in that picture you posted are almost covered up by a thickened fuselage.

Could this be the conformal tanks some sources have been suggesting, or just an indication that the body has been beefed up?

Either way, if they used that extra space for fuel, then it would almost certainly lead to an increase in range.

 

[crobato]

Crobato,

those two are airbrakes. Same as two on the upper side... They are and were always there.

The air brakes are on the side of the plane, not the two bumps on the bottom. These were gone after the fifth or sixth prototype.

The changes of color underneath may indicate a greater increase of composite surfaces over the previous plane version.

 

[cmb=1968]

Ah ok. So would you say that picture is of a PESA or AESA? Or is that there much of a difference between the two in terms of use and looks?
Everyone says AESA's better of course, but why is PESA inferior?

What is PESA?

What does it stand for?

I gather it is a type of RADAR.

I know AESA stands for Advanced Electrically Scanned RADAR.

 

[HKSDU]

What is PESA?

What does it stand for?

I gather it is a type of RADAR.

I know AESA stands for Advanced Electrically Scanned RADAR.

AESA does not stand for Advanced Electrically Scanned RADAR

passive electronically scanned array=PESA
active electronically scanned array=AESA