MILITARY CALLSIGN LIST

One explanation I’ve read (which makes sense to me) is that the first unit sortie of the day is callsign + 11, the second sortie is callsign + 21 and so on. Another theory is that the suffixes are determined by the day of the week, i.e. 11 is used on Monday, 21 on Tuesday and so on. ... ENERGY var Dept of Energy acft. ENJEP T-38 Euro-Nato Jet ... ................
................