I could’ve sworn that the vertical slabs got moved to tail booms on P2… Either it’s my personal Mandela Effect or I got it confused with a model showcased at a defense fair…
No, that was never in question. It was only noobs on Twitter with large followings insisting on that change, projecting their own wishcasting as if it were fact.

1000082833.png

What the officials actually mentioned was a small change to the intakes and dimensions. As you can see, the intakes' splitter-plates have holes to discharge the boundary layer flow now; and the aircraft looks noticeably sleeker and more refined.


Those fools took it at face value without any critical thinking and ran with it due of their lack of experience and knowledge, as well their populism.
 
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No, that was never in question. It was only noobs on Twitter with large followings insisting on that change, projecting their own wishcasting as if it were fact.

View attachment 802306

What the officials actually mentioned was a small change to the intakes and dimensions. As you can see, the intakes' splitter-plates have holes to discharge the boundary layer flow now; and the aircraft looks noticeably sleeker and more refined.


Those fools took it at face value without any critical thinking and ran with it due of their lack of experience and knowledge, as well their populism.
I wouldn't throw shade at anyone when you, yourself, was adamant that there would be no changes to the intake of the KAAN. Even when the GM was saying that there would be changes :p you still disagreed with GM. lol

I could’ve sworn that the vertical slabs got moved to tail booms on P2… Either it’s my personal Mandela Effect or I got it confused with a model showcased at a defense fair…
Probably the mock-up, which regardless of being an old mock-up and not being true to form - is still displayed outside TFX office

1771274854535.png
 
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I wouldn't throw shade at anyone when you, yourself, was adamant that there would be no changes to the intake of the KAAN. Even when the GM was saying that there would be changes :p you still disagreed with GM. lol
People were claiming it would receive DSIs, for goodness’ sake.

Did the intake shape change? Did the ducts change? No. They simply added a discharge system to replace the old, non-stealth spill duct; which is honestly more or less what I expected all along based on how other advanced aircraft with caret intakes are configured.

I wouldn’t have been surprised by minor tweaks to the intake edges or corners either, but my position was always that any major intake design change would require a dramatic duct redesign, which would have practically meant conducting the CDR from the beginning all over again...
 
I could’ve sworn that the vertical slabs got moved to tail booms on P2… Either it’s my personal Mandela Effect or I got it confused with a model showcased at a defense fair…
I think the position on the nacelles is necessary to ensure that they wouldn't be directly hit by the vortices of the LERX.
 
I think the position on the nacelles is necessary to ensure that they wouldn't be directly hit by the vortices of the LERX.
I was thinking/hoping that the adjustment of the intake had also the reason to direct the vortices a bit further away of the vertical stabilizers.
Therefore generating more wiggle room to fix them beside the nacelles - reducing maybe some overall height and shield some of the heat-signature.
 
Damn, each passing day I'm becoming more and more Kaan-sexual... o_O (Who would've thought?)
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Holy crap, you can clearly see the door-less Belly IWBs of the Static Test Airframe...

HBqxnYtW0AA7eUJ.png

(EDIT: And here's the P1: )

Screenshot 2026-02-21 104503.png

They're too transparent, they could've at least sensored it for a while...
 
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will KAAN have 4 IWBs? two side bays and two tandem bays on the centerline? or will it be three?
There is definitely a side-by-side config on P1.
On another topic, we really don't appreciate the amount of composites used in KAAN enough.
 

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looks like its two side by side bays on the bottom. There were people here that were adamant its two tandem bays like on the Su-57.
Tbf, that was the general consensus three years ago, based on the information we had at the time.

This slide was presented 5 years ago by the Air Force during Anatolian Eagle '21:

Clearly, lots of changes were happening even by then and the slide was already outdated during its display. (Which we kind of speculated at the time!)
 

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Tbf, that was the general consensus three years ago, based on the information we had at the time.

This slide was presented during Anatolian Eagle '21:
Not unlikely P0 is exactly that configuration. Which is why after election there was little point even testing it.
 
Not unlikely P0 is exactly that configuration. Which is why after election there was little point even testing it.
Exactly. P0/GTU-0 (Designated as: Development Test Unit-0) was precisely that – an engineering unit built to physically validate whether theoretical calculations and designs could be translated into functional hardware.

As you noted, the design shown on the slide corresponds exactly to the P0 configuration.
 
we really don't appreciate the amount of composites used in KAAN enough.
It’s mostly skin, though. Beneath it, there’s a significant amount of titanium (i.e., the bulkheads) and aluminum alloys.

In the case of the F-22, this is how it is:
Edit: Here's the F-35:
 

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Apparently no actual optics inside the EOTS enclosure (yet).
Yep, there’s still some time for that, but all sensors are scheduled to be integrated this year (and are on track to do so). Even if they weren’t, all of their downrated variants are already being tested on Kızılelma.

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Is it just me, or have the wing roots gotten thicker?
 

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^ I was thinking the same exact thing just a minute ago. But wasn't sure if its thicker or looks thicker since the intake structure is slightly different now.

In any case, as aviation fans, the progress of Turkish aerospace has been exciting, perhaps as much as China, in terms of how many new updates we keep reading about.

Overall, among NATO countries outside of the US, all these new things popping up from Poland and Turkey (naval, armor, aviation) have been very interesting.
 
update to edge alignments. Also some new hump aft (orange circle)
Nice summary of the visual changes, although it is not fully complete yet. Such an extensive redesign/evolvement from pre-CDR to post-CDR would have truly been a nightmare fuel for any Western engineer...

I have attached some of the changes we have noticed below. In addition to those, the main landing gears are now side mounted, and the canopy bar is internal this time. The EOTS has been moved forward, the plate to which the radar is attached has been shifted slightly further forward, and the double chin has been eliminated. Length-wise, the intakes/ducts no longer extend to the canopy, and a boundary layer flow discharge system has been added to replace the old non-stealth spill duct. There are numerous antenna housings for EW, most notably at the front and rear tips of the wings and of the vertical stabilizers (as well as numerous conformal datalink antennas on the front and aft central fuselages). The tail boom has also been redesigned. The wings are now wider, and the ailerons and flaps are the same size. While the P0 had no IWBs, the P1 features not only side bays but also side-by-side belly bays.

The aft hump is also present on the P0, but on the P1 it extends further to the wing root and is slightly larger:

We might be are onto something...

IMG-TAI-TFX (1).jpg

Good catch on the edge alignment, that critical detail somehow slipped past all of us.
 

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Exactly. P0/GTU-0 (Designated as: Development Test Unit-0) was precisely that – an engineering unit built to physically validate whether theoretical calculations and designs could be translated into functional hardware.

As you noted, the design shown on the slide corresponds exactly to the P0 configuration.
It is somewhat surprising that the P0, which was originally intended as merely a ground prototype provided so much valuable information after just two test flights, especially for stability and control.

But I think the real -and hidden- "hero" here is the digital twin. The MMU program employs extensive use of digital twin, PLM, CAE etc at virtually every aspect of the design and development phases. During our conversation, the chief test pilot told that he was happily surprised to see that much overlap with the simulated data of the digital twin and those gathered from test flights at certain aspects.
 
It is somewhat surprising that the P0, which was originally intended as merely a ground prototype provided so much valuable information after just two test flights, especially for stability and control.

But I think the real -and hidden- "hero" here is the digital twin. The MMU program employs extensive use of digital twin, PLM, CAE etc at virtually every aspect of the design and development phases. During our conversation, the chief test pilot told that he was happily surprised to see that much overlap with the simulated data of the digital twin and those gathered from test flights at certain aspects.
Holy shit orko_8 himself is still among us!

1000083663.gif


A new episode with @hepdurgunsu covering the new prototype reveal would be much appreciated!
 
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Nice summary of the visual changes, although it is not fully complete yet. Such an extensive redesign/evolvement from pre-CDR to post-CDR would have truly been a nightmare fuel for any Western engineer...
Did you mean there will be further changes still in subsequent unit?
 
Did you mean there will be further changes still in subsequent unit?
Nope, just that there are so many design changes from P0/GTU-0 that there's much more than just edge alignments or an aft hump to discuss...

In addition to those, the main landing gears are now side mounted, and the canopy bar is internal this time. The EOTS has been moved forward, the plate to which the radar is attached has been shifted slightly further forward, and the double chin has been eliminated. Length-wise, the intakes/ducts no longer extend to the canopy, and a boundary layer flow discharge system has been added to replace the old non-stealth spill duct. There are numerous antenna housings for EW, most notably at the front and rear tips of the wings and of the vertical stabilizers (as well as numerous conformal datalink antennas on the front and aft central fuselages). The tail boom has also been redesigned. The wings are now wider, and the ailerons and flaps are the same size. While the P0 had no IWBs, the P1 features not only side bays but also side-by-side belly bays.

The aft hump is also present on the P0, but on the P1 it extends further to the wing root and is slightly larger:
 
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1000022595.jpg

Does this seam line mean that the radome is made of several pieces? If so, does it matter in terms of performance or observability? I saw an article from chinese forum arguing that the seam deteriorates the effect of sawtooth outline of the radome
 
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Does this seam line mean that the radome is made of several pieces? If so, does it matter in terms of performance or observability? I saw an article from chinese forum arguing that the seam deteriorates the effect of sawtooth outline of the radome
1000084717.jpg

The radome will be replaced when it’s time to test the FCR.
 

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