You might be thinking of the comic book series Luftwaffe: 1946, written and drawn by Ted Nomura. It began being published by Antarctic Press in 1996. A long, long time ago, I bought a secondhand copy of a trade paperback which I think collected the first few issues of the Luftwaffe: 1946 series, although there were references in it which made it clear that it tied in with stuff which previously had been published in some other comic book series.
I did not find the writing captivating, and I've never bothered to look for a chance to buy any other stuff set in that alternate-history timeline. About the only things I clearly remember from it are:
Adolf Hitler was more successful in this timeline's version of WWII, and he came across as a fairly normal guy in what we saw of him. (I think the Holocaust never happened?) The one scene I really remember is one in which he is talking to a couple of kids (probably German kids) about their sketches for a possible comic book series they might like to publish someday, when they're older. I don't remember what sort of characters and setting it would have, but the implication was that Hitler was interested in their sketches, and maybe did a few sketches himself for them, because he was once a starving young artist in Vienna, and so he could relate to their ambitions in that area.
There was at least one attractive female fighter pilot working for the Luftwaffe. I don't remember exactly what she did in the plot, but she was definitely onstage.
There was a fair amount of talk about the technical side of things -- different planes which the Germans either did build in that era, or else might have if they'd gotten the chance.
I did some Googling just now, and here's a scanned image of a sample page which probably shows the same female pilot I was remembering (although I can't swear to it). If the art style seems to ring a bell in your memory, then we're probably talking about the same comic book series. (And if not, we probably aren't.)
P.S. I dug around and found a brief online review by someone whose memory of the series was a lot fresher than mine when he wrote it. Here's an excerpt from what he says:
This is an alternate universe story in which Hermann Göring's death in
1918 and the 1937 discovery of a buried flying saucer allow Nazi
Germany to pour more resources into development of Wunderwaffen. The
Axis powers are more successful and the Allies less so, so the war
drags on. This comic book series (actually several mini-series and
special editions) is really a framework for Ted Nomura to draw highly
detailed pictures of hypothetical German aircraft as if they had gone
into operation. The depictions of aircraft, ships, tanks, etc., are
outstanding. His character work is strongly influenced by Japanese
manga and thus drifts away from the realism displayed in his vehicles.
The writing does not measure up to the artwork.