I would argue that getting a PILOT slot out of ROTC is just as likely as getting a pilot slot out of the Academy (and easier than trying the OCS way-there are just too many applicants and not enough slots). They usually split the numbers of Pilot/NFO slots up evenly between the Naval Academy and the NROTCs.
Whether you go to the Naval Academy or NROTC, the thing that makes you competitive for an aviation slot is GRADES, Aptitude, and ASTB scores. The ASTB score accounts for 40% of your service selection, Grades are 27% and the rest is Aptitude and class rankings. SO, if you are at the top, you will get a slot. The higher your scores, the more competitive you are. (ie: if you get 6's and 7's on your ASTB, whereas, the person you are competing against has 5's and 6's, and the rest (GPA/Aptitude) is the same, the person with the higher ASTB scores will get the slot.)
It's all about performance. Do well and you will get rewarded. This goes without saying, but you must also be physically qualified.
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