But with a wider wingspan of course.
J-35 carrier fighter (PLAN) thread
- Thread starter Deino
- Start date
But with a wider wingspan of course.
Right. I was referring to the length, diameter, and weight. Part of the reason for PL-15’s boosted range has to do with the lower drag due to shorter fins.
Well, it likely plays a role but I suspect propellant, dual pulse motor, guidance, and advancements in flight control laws played similar if not greater roles. (One can see how the AIM-120C to AIM-120D kept the same wingspan and overall fuselage yet gained substantial increases in effective range, all even without a dual pulse motor!)
But the reason I bring up the wingspan, is because previously the discussion was about the types and number of BVRAAMs that can fit into J-20's weapons bay (and by extension, possibly J-XY's weapons bay as well).
Gloire brought up PL-12 because he thought it was smaller than PL-15, where in fact as you pointed out its fuselage diameter and length is basically the same as PL-15, however the wingspan of PL-12 is greater than PL-15... and the wingspan is the most important aspect of the footprint which determines whether the missile can be carried or not.
Which is to say, if we are interested in talking about the BVRAAM types that can fit into J-20/J-XY's weapons bay, PL-12 is not really relevant to the conversation.
antiterror13
Brigadier
It is amazing and somewhat hard to imagine that J-XY has the same weapon bay geometry as J-20 ... ss I understood, J-XY is significantly smaller than J-20 ... how could that be? please educate me, thanks
No side bays on the J-35. They take up a lot of internal space because the intakes need to be positioned around those.
J-XY is significantly smaller than J-20, but J-20's weapons bay is also relatively small dimension-wise, to its overall size (compared to say, the dimensions of F-22's weapons bay to its fuselage size, or the dimensions of F-35's weapons bay to its fuselage size).
In the case of J-XY, I am awaiting pictures to see if the rumour is true, but I think it is a possibility.
While FC-31 is smaller, it is still a 27t-class aircraft. Which is anything but small - it's in the weight class of F-4 Phantom.
I.e. it's ~same size as KFX, TFX, AMCA, and so on. As you can see, all these are also intended to similarly-sized bays inside, FC-31(hense J-XY) is simply the first among them.
Furthermore, while two engines indeed take more space inside the conventionally configured aircraft (compared to F-35) - they inherently make it quite convenient to make a single big weapons bay down below, - avoiding external protrusions at that.
Which, again, all the aircraft from the list above exploit.
Finally, ad contrario, these things almost universally work the other way during the design process. Designers don't design a plane and see what can fit in. They go from the list of requirements (which for a 5th gen aircraft obviously includes main bay dimensions - it's a core requirement) to the plane which can satisfy these requirements.
I posted a Google translation to English of the Chinese article on the J-XY optimisations.
Picking out the core points:
Modifications to the wing, simple flaps and scheduled use of rudder allowed it to meet lift requirements without needing slotted flaps which are bad for stealth.
The changes to the rear of the canopy, intakes and rear fuselage/tail area were made for drag reduction, overall drag reduced 10% which allowed the design to reach its acceleration requirement.
Redesign of the tail area reduced the negative load of the horizontal tail.
Picking out the core points:
Modifications to the wing, simple flaps and scheduled use of rudder allowed it to meet lift requirements without needing slotted flaps which are bad for stealth.
The changes to the rear of the canopy, intakes and rear fuselage/tail area were made for drag reduction, overall drag reduced 10% which allowed the design to reach its acceleration requirement.
Redesign of the tail area reduced the negative load of the horizontal tail.
I don't know why they choose the name J-35, why not J-40 or something. This name looks similar to the F-35.
We don't know its real designation yet.