Beat my by half a minute damn. I agree this just throws up more questions. I would like to know if the 6X is filled already given that we have a 7X serial. Also what is the state of the 3X serials, I assume they wouldn't just build half a dozen aircraft with lower serials of new batch and then renumber to a higher first digit so there is bound to be a serial higher than 35 (and what about 4X then, just not spotted?).
It could also be that we are just understimating numbers by quite a bit even if not all numbers from 00-72 are filled. Given that we already see large spread of spotted serial numbers I'd assume we are at ~50 J-15 now.
Anyway production rate seems to be relatively decent right now.
Wow ... I was quicker than you? I should mark the calendar!
Well, as you noted, more questions than answers, but my feeling tells me that there are indeed two squadrons - maybe even brigades with about 35 aircraft in formation. 1st one with J-15s nos. 01 to 35 and the 2nd one - skipping thee number 40s and 50s for an unknown reason - with nos. 60-95 (maybe) if they both will have 35 J-15s each.