This title contains:
- USAAF Handbook of Operation and Flight Instructions for the PT-20A, T.O. No 01-100GB-1 dated 5-8-41, with 18 pages.
- USAAF Handbook of Operation and Flight Instructions for the PT-21 and PT-22, T.O. No 01-100GC-1 dated 20-12-41 revised to 25-2-42, with 22 pages.
- Ryan Manual of Instructions for the ST-A aircraft (Menasco engine and Sensenich propeller), covering operation and maintenance. Dated with July 1, 1940 approx 152 pages.
- Ryan brochure for the S-T Trainer. Undated with 6 pages.