Rucker isn't all that long for the AF guys (I don't think) who go through there since they already went through UPT. The 60 transition is elsewhere...all they have is UH-1s at rucker for the AF (as of a year ago anyway). I would guess the 60 transition is a couple months after initial UH-1 helo training which is 4 or 5 months probably (rough estimate, could be way off...). My highschool classmate was at rucker for AF helo flight training when I was there for flight school, and as I recall he was there no more than 6 months.

Doesn't answer your question but thats the best I can give you and it doesn't seem like many other people know. I do know you would go through rucker then the 60 transition...and you are looking at just shy of a year if I had to guess.