FAA Decoded
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FAA Decoded
Decoding VFR Navigation: Charts, Compasses, and GPS Essentials
Decoding VFR Navigation: Charts, Compasses, and GPS Essentials | FAA Decoded Podcast #31
Welcome back to FAA Decoded! In Episode 31, we embark on a comprehensive 60-minute journey through Chapter 16 of the Pilot's Handbook of Aeronautical Knowledge, where we unravel the critical art of VFR navigation. Whether you're planning your first cross-country flight or looking to sharpen your navigational skills, this episode is your ultimate guide.
We'll kick things off by exploring the essential Aeronautical Charts – your VFR roadmap. We'll detail the differences and uses of Sectional Charts, VFR Terminal Area Charts (especially crucial for Class B airspace ), and World Aeronautical Charts, emphasizing how to interpret their legends. We'll also cover the fundamental concepts of Latitude and Longitude and their role in pinpointing your position, along with understanding Time Zones across the conterminous U.S. and the importance of Universal Coordinated Time (UTC).
Next, we'll dive deep into Measurement of Direction, breaking down the relationship between True Course (TC), True Heading (TH), Magnetic Variation, and Magnetic Deviation. Learn the "east is least, west is best" mnemonic and how to apply corrections using isogonic lines and your aircraft's compass deviation card. We’ll also explain the crucial Effect of Wind on your flight path, distinguishing between heading, track, drift angle, and wind correction angle (WCA).
Beyond the theory, we’ll equip you with Basic Calculations for time, speed, distance, and fuel consumption, including how to convert minutes to hours and knots to miles per hour. Discover how to effectively use flight computers (like the E6B) and plotters for your preflight planning.
The episode then shifts to practical Navigation Methods:
- Pilotage: Navigating by visual landmarks, including tips for selecting effective checkpoints and common pitfalls to avoid.
- Dead Reckoning: Using computations based on time, airspeed, distance, and direction, and how to construct a Wind Triangle to accurately predict your groundspeed and true heading.
- Radio Navigation: We'll explore the ground-based systems, including VOR (VHF Omnidirectional Range), its components, and how to track "TO" and "FROM" a station. We'll also touch on DME (Distance Measuring Equipment) and ADF (Automatic Direction Finder).
- Global Positioning System (GPS): Understanding the capabilities and limitations of GPS for VFR flight, the importance of RAIM (Receiver Autonomous Integrity Monitoring) and database currency, and practical tips for its safe use. We’ll also discuss VFR Waypoints as supplementary navigation tools.
Finally, we’ll address critical safety topics like Lost Procedures and how to handle a Flight Diversion, emphasizing proper pre-flight planning and in-flight decision-making.
This episode is packed with essential knowledge to enhance your cross-country flying confidence and safety. Subscribe to FAA Decoded now to ensure you don't miss out on mastering VFR navigation!
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