J-20 5th Gen Fighter Thread IV (Closed to posting)

[SteelBird]

J-20 being much bigger than the F-22 has no truth value whatsoever. The claim is merely something perpetuated by J-20 bashers in an attempt to portray the J-20 as a bomber. Although the J-20 is longer, it is also smaller span-wise when compared to the F-22. Proportionally, the J-20's body should have similar cross sectional area as the F-22, meaning the size of J-20's weapon bay shouldn't be much bigger than that of F-22.

In my opinion, there is too much extra space around the missile dummies. This makes me think that the weapon bay is not optimized to carry only four missiles. I believe what were being carried are slightly larger than current generation of medium range AAM.

Is there any possibility that the production J-20 will have larger and longer bay?

 

[plawolf]

Is there any possibility that the production J-20 will have larger and longer bay?

The J20's weapons bay is plenty big already (larger than the F22's in length, width and depth), it would take a major redesign to fit in a bigger bay, and almost impossible to widen the bay since it already takes up the entire fuselage.

The issue isn't with the J20's bays but with the size of the PL12 missiles. A next gen missile designed with internal carriage from the start should allow 6 missiles in the main bay like the F22.

 

[kwaigonegin]

Estimates for the J20's weapons bay dimensions are around 4.3-4.5m long and 2-2.2m wide.

The F22's weapons bay are 3.9m long and 1.8m wide.

PL 12
Length 3.85 m (12.63 ft)
Diameter 203 mm (8 in)
Wingspan 670 mm (27 inches)

AIM 120
Length 12 feet (3.7 m)
Diameter 7 inches (180 mm)
Wingspan 20.7 inches

Based on your assumption, it would seem that the F-22 utilizes it's bay much better than the J20. The PL 12 has a much wider wingspan which is probably the archiles heel as far as internal storage is concern. If they can make it foldable than possibly they can fit 6 in there.

 

[Hyperwarp]

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[Hyperwarp]

As far as the depth goes, the bay must accommodate the hard-point mechanisms, missile fins, margins, plus the thickness of the bay doors. Any extra space for outsized air-to-ground ordinances is an illusion as the extra space is in fact not useable.

If that is the case then its very poor utilization of space. Not as near as efficient as the F-22 bay for A/A stores and are they large enough like the T-50 bays? T-50 bays can carry Kh-58UShKE (fins folded -

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,

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) and IIRC Kh-38ME, Kh-35UE all with folding fins. It also can carry only 4 A/A missiles in the bays but it can carry 200+km RVV-BD missiles -

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[Blitzo]

Yeah I don't see why the extra space cannot be used. A weapon with the right cross section could certainly utilise it, something squarish like the JSOW which is only a little longer than PL-12.

And having growth capability is better than having to make the doors bulge like F-35 in future variants.

 

[hardware]

the size of the injection carriage depend on the weight and size of the missile.with PL-12C possible one can squeeze two more .
few year ago, I recall , picture of J-10,carrying two PL-12 (Pl-8?)mounted in single carriage .

 

[getready]

Are they pl-12 or pl-15? Huitong in his entry has it as pl-15.

 

[hardware]

Are they pl-12 or pl-15? Huitong in his entry has it as pl-15.

it is PL-12.

 

[escobar]

It seems 2002 has been moved to CFTE...