you wont know aircraft or even TRACK of aircraft until after the first part of UPT for the Air force...... you cant say.. its fighters or nothing...... you get a slot....and take your chances. The slots them selves were pretty damn competitive when I went thru the process 20+ years ago....im sure some younger guys can chime in .... they have a tracked system now ...
What I mean by that is that when i went thru ALL of us did Phase I in T-37's and Phase II in T-38's....even us TTB ( tanker, transport, bomber ) guys. Now they use the beechjet mil version for phase II i guess for TTB guys....probably makes alot more sense but man the memories of flying the T-38 are priceless...
Anyways ...the closest thing you can get to guarantee a aircraft is guard and reserve... and if its a fighter unit, u still have to be qualified in UPT for fighter aircraft or find another unit.. well thats the way it use to be anyways.... good luck.