I'm hoping that someone can answer some basic questions on USAAF OTUs/RTUs (and the follow-on AAF Base Units, AAFBUs): - Records like Maurer’s "Air Force Combat Units of WWII" suggest that, after being activated, every combat-coded Bombardment and Fighter Group trained at multiple stateside bases before being sent overseas for combat. Can I assume that each such newly-activated Group was deemed an OTU while in training CONUS? - Would every such OTU have been temporarily assigned aircraft from a 'pool' at each base at which it trained? What entity would have typically ‘owned’ the aircraft pool at a given base (e.g., the base’s Air Base Group?)? - When an OTU was in training stateside, was it assigned the actual aircraft that it would later take into combat? If so, when in the training cycle would an OTU have typically received its combat aircraft; i.e., early in the unit’s training process, or later (perhaps just before the unit was sent overseas)? Or were combat aircraft not assigned until the now fully-trained unit was in its assigned combat theatre? - Some RTUs and AAFBUs operated at a given base for a considerable length of time, often more than six months. Can I assume that, in general, RTUs and AAFBUs were assigned their own organic fleet of aircraft, as opposed to drawing from a pool at the base whatever hosted them? - Would the aircraft belonging to an RTU or AAFBU, or to an OTU while stateside, have had unit-specific markings? Or would the planes have been generically painted?