"K" coded NAA O-47 previously based at Stockton Field, CA. Stockton was an Advanced S-E, 2-E  and Basic Flying Training base. Photo by W.T. Larkins	"F" coded BT-13 assigned to Freeman Field, IN. Freeman was a large Advanced 2-E Flying Training base with 250 AT-10's. USAAF Photo from Allan Hammon Collection	"J" coded AT-23 (Target Tugs) based at Dover AAF, DE   Photo source:Dove AFB Museum

"V" coded BT-13 based at Victorville AAF, CA ( Victorville was a large Advanced 2-E Flying training base with AT-9 & AT-11's) Official USAAF photo from the Collection of David Hatfield	"X" coded BT-13 based at Luke Field, AZ (Luke was Transition S-E & Spec 2-E Flying Training fighter base) USAAF photo from the Collection of Ken Crist	"W" coded AT-8 based at Walnut Ridge AAF, AR        Source: Wings of Honor Museum, Walnut Ridge, AR

"C" coded PT-18 based at Cochran Field, GA Cochran was a large Basic flight training base with over 100 BT-13/AT-6 assigned.  Official USAAF Photo from Collection of Ken Crist   Official  USAAF Photo	Unusual "R" suffix coded AT-10 based at Ellington Field, TX   USAAF Photo via George Cully	"S" Coded B-25 based at Marana AAF, AZ   USAAF Photo from the Collection of Steve Hoza

"C" (infix) coded RA-25 and P-40 based at Esler Field, LA   USAAF Photo	"F" coded A-24's at Burns Auxillary AAF, OR   USAAF Photo	"HQ" marked AT-6 based at Maxwell Field, AL   USAAF photo from the TWU Collection

Infix coded "X" B-26 based at Harlingen AAF, TX (WASP operated Target Tug)  USAAF Photo	"M"  coded P-40 based at MacDill Field, FL which was a large 2-E & 4-E bomber training base.    USAAF Photo	"SP" coded B-25 based at Spence AAF, GA (Spence was an adv S-E and fighter transition)      USAAF Photo

"O" coded O-52's based at Brooks Field, TX (Brooks was also an Observation Training School)    USAAF Photo from the Collection of KenCrist	"EL" coded L-5 based at Biggs AAF, TX   Photo from the Collection of Tom Michel	"A" (suffix coded) BT-13 based at either Tinker AAF (OK) or the Ferry group at Cincinnati (OH)   USAAF photo from the Collection of Ken Crist

" I " coded PT-22 based at Mather Field, CA ( Assigned to the Instructors School)      Collection of W. T. Larkins	"J" coded RA-29 (target tug) based at Sarasota AAF, FL   From the Collection of Michael Drake	"O" coded B-25 based at Brooks AAF, TX   Chris Brame Collection

"T" coded PT-19 based at Victory Field, TX  Note: Primary training aircraft were not to display field letter codes    USAAF Photo from the Chris Brame Collection	"SP" coded P-36 based at Spence AAF, GA   Spence AAF was an Advanced Flying Training base with 150 AT-6's assigned    Photo Source: Unknown	"EP" coded P-36 based at Eagle Pass AAF, TX   Photo Source: JeffTaylor "1943 EP Photos"

"M" coded Martin AT-23's (Target Tugs) based at Millville AAF, NJ     Photo Source: Millville Air Museum	"T" coded RA-25 (Target Tug) based at Millville AAF, NJ   Photo source: Millville Air Museum	"Z" coded AT-23 (Target Tug) based at Gulfport AAF, MS    USAAF photo

"A" coded BT-13's based at Harding AAF, LA   Photo Source: USAAF	"CL" coded AT-6 and AT-10's based at Cortland AAF, AL   Photo source: USAAF	"F" coded P-39 based at Esler AAF, LA   According to caption the aircraft is assigned to the 10th Photo Recon Group     Photo source: USAAF