Advanced Trainer, 1925-1948
- AT-1 - Huff-Daland
- AT-2 - Huff-Daland
- AT-3 - Boeing
- AT-4 Hawk - Curtiss
- AT-5 Hawk - Curtiss
- AT-6 Texan - North American
- AT-7 Navigator - Beechcraft
- AT-8 Bobcat - Cessna
- AT-9 Jeep - Curtiss-Wright
- AT-10 Wichita - Beechcraft
- AT-11 Kansan - Beechcraft
- AT-12 Guardsman - Republic
- XAT-13 Gunner - Fairchild
- XAT-14 Gunner - Fairchild
- XAT-15 Crewmaker - Boeing-Stearman
- AT-16 - Noorduyn
- AT-17 Bobcat - Cessna
- AT-18 Hudson - Lockheed
- AT-19 Reliant - Stinson
- AT-20 Anson - Federal
- AT-21 Gunner - Fairchild
- AT-22 Liberator - Consolidated
- AT-23 Marauder - Martin
- AT-24 Mitchell - North American
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