Interesting informative comments found under
@Deino's FB post regarding the newfound J-20 serial numbers.
View attachment 101069
I would rather take it with a grain of salt. Why does PLARF keep J-20 in reserve meanwhile 5th gen fighter is in high demand both in training and patrolling.
I am not trying to be pessimistic here, but do we have hard evidence that CB0XYZ exactly means? X is batch number for sure however the last two digits can mean XXth within the same batch or XXth in total production. I am looking for counter evidence against the latter one. For example, are there any photos indicating a production number like CB0101 or CB0310 to confirm the last two digits are counted independently between batches?
If we could confirm it, the total units would be at least 18 + 40 + 56 + 70 = 184.