If you only have 4-5 days of academics, and only fly 16-18 hours, what do the rest of the three weeks consist of?
Maybe I'm overthinking this and getting nervous about this for nothing. I was told the best thing you can do for IFT (and OTS and UPT and certain military things in general) is just have a positive attitude; yes there are sucky, miserable parts, but everyone is going through it. Just commiserate together, cooperate and graduate.