Drag in Aviation Explained: Parasite, Induced Drag and L/D Max
Every aircraft that moves through the air has to push the air out of its way, and the air pushes back. That rearward force is called drag . Engines exist to beat it, wings are shaped to reduce it, and the speed a pilot chooses for a glide or a climb depends on it. This guide explains drag in plain language: the two main types, the three kinds of parasite drag, why induced drag comes with lift, and how the total drag curve leads to the speed for L/D max. The main source is the FAA's Pilot's Handbook of Aeronautical Knowledge. This is neutral, educational information, not flight training. For Indian student pilots, principles of flight are part of the DGCA CPL ground subjects (Technical General) in CAR Section 7, Series B, Part IV. Always check the current syllabus on dgca.gov.in . Preparing for DGCA papers or just starting to explore a pilot career? Get free one-to-one guidance on eligibility, DGCA exams and the steps that fit your budget. Under 18? Please fill it in with a...