hardpoints are not always carrying all available weapons in the arsenal,…
like F-15’s : you can’t put AIM-9M in place of AIM-120’s, for ventral hardpoints - same thing here
unless you have plans and dimensions of the planned weapon bay - this can’t get 12xR-77 internally
4xR-77 internally and 8xR-77 externally is what i believe, from actual aircrafts that are VERY similar
but
12xFAB500 (2.4m lenght) in the weapon bay could happen (2x6xFAB-500)
or 4xKh-29 (3.9m) 4x Kh-31 (4.7m)
for a weapon bay of 5m length (which is already a bit bigger than the J-20 one)
To be perfectly clear - this panel specifically says “in weapon bays” sure it could be just an error or something, but if we take it literally - all those weapons listed would fit internally.
12x FAB 500 (length 2.4m - diameter 40cm) can easily figure that 12 internal points are made such as 2x6xFAB-500
2 rows of 6 bombs will give a length 5m [with 0.05-0.10-0.05 m gaps] / width : 0.4*6 = 2.4m let’s increase to 3m for gaps of 0.1m]
which could totally be done for MiG 1.44 (a weapon bay of 5m length x 3m width)
AGM like Kh-55 or Kh-61 are only going to fit on external points (as said earlier)
AGM like Kh-29 (3.9m x 1.1m with fins) or Kh-31[mod1] (4.7m x 0.91m with fins) some can be fitted in weapon bay (the maximum would be with internal and external points)
Triple rack
(For su-57/su-37/su-75 but idk what other internal bays the mig 1.44 would’ve had because it never had them…)
(Also diagram depicts r-77m because that’s what the modern sukhoi stealth planes use)
with triple racks, then maybe 6 in the bay, but that’s not 12, as discussed above the weapon bay would not extend long enough, or be large enough to allow for more than 2 racks (as seperation between racks would be about 0.2m minimum, and each racks are already about 1m width each)
i also don’t think the weapon bay would go with a lenght superior to 5m, as the heat produced internally by the 2 saturns AL-41F, can present a risk of ignition for solid rocket boosters
I get it, but it is what Sukhoi officially stated, not me. And i think you’d agree that for an actual weapons bay 2 missiles feels a bit… underwhelming.