Helicopter Maintenance by Joe Schafer
This excellent book covers Helicopters in Use Today, Principles of Flight, Documentation, Publications and Historical Records, Helicopter Fundamentals, The Main Rotor System, Mast and Flight Controls, Main Rotor Transmissions, Powerplants, Tail Rotors, Airframes and Special Purpose Equipment. Written in concise, simple language and packed with photographs and illustrations. Soft. 352 pages.