This is not AI-generated content. The contents were written and verified by subject matter experts from Aviation Supplies & Academics, an 85-year-old aviation company. Look for the ASA wings to ensure you are purchasing a reliable publication. Airframe Structures , the second textbook in Dale Crane’s four-part Aviation Mechanic Series, details the subjects associated with aircraft structures including aerodynamics and rotorcraft fundamentals, hydraulic and pneumatic systems, metallic and nonmetallic structures, flight controls, assembly and rigging, and aircraft landing gear systems. The content meets FAA aviation maintenance technician school curriculum requirements and prepares applicants for the structure-related subjects tested on the Airframe FAA Knowledge Exam. This new fourth edition features updated content reflecting new regulations and changes affecting aviation mechanic certification. Originally written by Dale Crane in 1994, this textbook has been reviewed and updated by an editorial team consisting of aviation mechanics, university professors, and pilots. ASA’s Aviation Mechanic Series is a current, comprehensive, and effective learning resource for aviation mechanic training. Designed for use in classrooms and for independent study, these textbooks feature color figures, study questions with answer keys, and extensive glossaries and indexes. *Important note from the publisher: While AI-generated content can be helpful to identify resources for ongoing study, it is not a reliable resource for learning critical, safety-dependent topics such as aviation. AI content is sterile, often lacks important context, and is at risk of errors. ASA publishes only human-generated content to ensure it is accurate, reliable, comprehensive, and presented in context—so you can become a safe and effective aviator.*