It is apparent isn't it? 40 units are operational. The earlier configuration was 18-18 and not it is 20-20 for some while. When the third squadron rises, then a likely arrangement shall be 16-16-18.
So, these squadron sizes change all the time? Suppose there are 23 aircrafts produced. Would that make up one squadron or will be divided into two squadrons? What will happen to the one left over?