Same thoughts.The F-35 production run is much further down the road than the J-20. Plus, there is that big international order book for Lockheed Martin to fulfil. The J-20 production run is not there yet, but China has massive capacity for ramping it up. China can buy the J-20 cheaper than the US can buy F-35s. Because Chengdu Aerospace Corporation is state-owned, while Lockheed Martin is a private corporation that co-owns the US government.
Besides, if the PLAAF wants a one-to-one 5th-gen replacement for the roles which the J-10s is playing right now, the CTOL version of the J-35/31 is a good choice. Moreover, combining the production capacity of the J-20 and CTOL J-35/31 is also an effective way for China to rapidly surpass the US in terms of production rate of 5th-gen fighters.
However, as it has been repeated multiple times in the forum, thus far we have not seen the PLAAF showing any indication of inducting CTOL J-35/31s into service in the coming years, so this option is just pure speculation.
That is a really huge - yet wrong - take. China isn't the only one that is building everything right now.I think the reason why F-35 production can outpace J-20 is because F-35 is the only new Jet Fighter production for the United States. They focus their budget entirely to ramp up F-35 production. You shouldn't only look at their Jet Fighter production. But also their navy etc. Because at the moment, USA doesn't produce anything massive beside F-35 and some missiles. They may produce several Gerald N Ford class Carrier, but the production seems relaxed.
While China don't focus their procurement budget entirely to procure J-20. Their budget is basically split into J-16, warships, etc. That's why their J-20 looks slower than the United States.
As a matter of fact, other than the F-35 series and Gerald R Ford CVNs, the US is also:
1. Building Flight 3 Arleigh Burke DDGs;
2. Building Constellation FFGs;
3. Building America LHAs;
4. Building San Antonio LPDs;
5. Building Block 5 Virginia SSNs;
6. Building Columbia SSBNs;
7. Finishing the remaining orders for the Independence LCSs;
8. Starting to build B-21s;
9. Building F-15EXs;
10. Building C-130Js;
11. Building E-7s;
etc etc.
There is also the consideration where the US has to build all three variants of the F-35, i.e. CTOL's F-35A, S/VTOL's F-35B and CATOBAR's F-35C. These three variants shared just around 25% of their parts, which is far below the anticipated commonality of 70%. Essentially, you are looking at three (almost) completely distinct models and types of fighters that are sharing the same designation.
Meanwhile, speaking of the air force - For now, China only has to focus on:
1. One variant of the J-20, i.e. J-20A; and
2. Two variants of the J-16, i.e. J-16 and J-16D.
The production of the J-10 series and J-11 series have effectively stopped since 2021 and the late-2010s, respectively.
In the future, there will be:
1. The J-20B variant superseeding the J-20A;
2. One additional variant for the J-20, i.e. J-20S; and
3. Two variants of the J-35/31, i.e. CATOBAR and CTOL (the later variant for PLAAF/export/both).
Frankly speaking, other than the J-35/31's differing CATOBAR and CTOL variants, the J-20s and J-16s share broadly similar technicalities, specifications and performances across their own respective variants. This is as streamlined as anyone can get.
In fact, once the production of the J-20 series and J-35/31 series enter high gear, J-16 production would gradually/swiftly be phased out.