I assumed were talking WWII here. After all this is a WII combat sim...or at least I thought it was.
If you read a lot I suggest two books. Both by Warren Bodie (and btw Widewing is a noted author on WWII aircraft)
Both are in depth studies of the perspective aircraft. Regarded as the most comprehensive on the subject.
The titles are Thunderbolt and The Lockheed P38 lightning. Will list every craft made, it's tail number, model, plant it
was made and the complete development and use. Also.....don't believe everything you read on facts and figures.
Just as in real life there are those that are most educated on the subject then some others. I always use WIDEWING
and Guppy for possible sources since they both researched the planes and pilots of WWII heavily and thoroughly.