The G model had the chin turret and wasn't introduced until late 1943. So the show timeline hasn't arrived there yet.
I just watched the first two episodes last night. So forgive me if these thoughts have already been expressed upthread but I just thought I'd lay them out here.
First, I'm very happy that this is being made so all my thoughts should be in that context.
1. The dialogue goes between being decent, then having some weird Star Wars-esque awkwardness. I even noticed a few more modern slang phrases thrown in that in my decades of watching 40s period films - both war documentary and those produced for entertainment - never made appearances back then. That threw me a bit.
2. The Gen Z actors don't appear to be able to replicate the attitudes of the Greatest Generation in this film. Of course, that may be in large part because they never knew any. Most of that generation are gone and any Gen Z interaction with them at all probably took place when the Greatest Gen person was a shadow of their former selves and the Gen Z'er wasn't old enough to appreciate the nuances of their personalities. At the least, it feels like they could've watched a few more period movies and at least caught the zeitgeist of the times. Like the smoking comment upthread, I get the feeling that there wasn't enough background studying done to get into the times and the attitudes and perspectives those times produced.
3. I'm a little disappointed in the CGI. I understand there are not fleets of B-17s to work with. But there are 1000s of hours of footage both in the period and up to the current time to mimic for flight behavior of airplanes in general and B-17s specifically. Hell, I've seen video games that damn near nail it. As a warbird nerd (as I'm sure many in this thread are) and having personally seen many B-17s fly I have a least a little feel for how that should sound, and what it should like like. But I was thoroughly displeased with the take-off/landing sequences and in flight brake up scenes. They didn't ring true and this was disappointing given how much source material there is to refer to to make it right.
4. Some of the accent feel a little wonky.
Otherwise, really enjoyed. I also which they'd shown some more stateside training like they did in BoB, but I understand budget limitations, etc.