Airframe and Powerplant Mechanics Powerplant Handbook
The Airframe Handbook is the basis for the part 147 written test. Written in 1972 and updated in 1976, the "15A" is lacking only in modern systems and electronics.
Aviation Mechanic General, Airframe, and Powerplant Knowledge Test Guide
Aviation Weather for Pilots and Flight Operations Personnel
Balloon Flying Handbook
Aviation Maintenance Technician Handbook Airframe Volume 2: Faa-H-8083-31
Airframe and Powerplant Mechanics: Airframe Handbook Index
Pilot's Handbook of Aeronautical Knowledge
This is the official updated FAA Pilot's Handbook of Aeronautical Knowledge FAA-H-8083-25B. The Pilot's Handbook of Aeronautical Knowledge is an essential book for any Remote, Sport, Recreational, Private, Commercial, and Instructor Pilot.
Seaplane, Skiplane, and Float/ski Equipped Helicopter Operations Handbook