NROTC 1/Cs often service select in September or October each year using a completely different pool of slots set aside for us. Our service selection is all done through NSTC and NETC. Around the same number of 1/C mids each year across the country as the Academy. ASTB scores vary from year to year, but usually 5s and 6s is at least good enough for SNFO, often good enough for SNA too. Some years it could be higher if an unusually high number of people are going for aviation. If Big Navy needs to reduce the amount of aviation slots in a year, they will cut down the USNA and NROTC slots equally and not favor one or other.Fair enough. You guys know better with respect to that. I was going by what my kid was sharing from his experience in both NROTC and at the Academy. USNA service selects before NROTC, and the bar seems to be set lower for the ASTB for the Academy versus NROTC. It might be the same actual value (4/5/4) on paper, but everyone in his unit said that if you aren't up near the 7/7/7 range, you are probably not going to get a slot. While at the Academy, it you hit the min, you have a solid shot. Maybe because there are more NROTC students each year than Academy kids??
For OCS, I had heard it was "needs of the Navy" where there could be many slots, or none. If they hit their numbers for retention and new from USNA/NROTC, then OCS takes a hit.
Again, just going by his gouge after seeing both sides.
I'm certainly no authority, so take everything I write with a huge grain of salt.
For Pensacola report dates, we have our own slots too from late May until whenever it ends for the year (usually in November), and you get to request a month to go down, and then they give you a week in that month to report during. Check-in group and NIFE classes in Pensacola will be a good mix between OCS, NROTC, and USNA, along with USMC, USCG, and internationals. Same with primary classes.
SWO ship selection is similar, and they happen around the same time, Big Navy has different slot pools set aside for NROTC and USNA. Like half the Rota slots go to USNA, other half to NROTC, and so on. We don't just get "what's left" from USNA. NROTC mids can also get a "blue chip" during their 1/C SWO cruise.
OCS aviation slots can ebb and flow a little bit with the amount of slots, but they likely won't drop that number down to 0 because they want a mix of commissioning sources in the community. If the aviation pipeline starts to get backed up, they'll usually just assign later and later class dates for people, but they don't cut off OCS completely.