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Learn about VNC, VTA, and WAC charts, symbols interpretation, distance measurements, and track calculations essential for precise pilot navigation. Enhance knowledge for safe test ranges in Nevada.
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Navigation 3.02 Using Charts References: FTGU pages 184-194 Transport Canada Study and Reference Guide Glider Pilot Canada Flight Training Manual – Pilot Navigation
3.02 Using Charts • MTPs: • Using Aeronautical Charts • Types of Charts • Symbols on Charts • Measuring Distance • Tracks and Bearings
Using Aeronautical Charts • How charts differ from maps: • Control Zones • Aerodrome Information • Ground Elevation • Lines of Variation • Airspace Information • Communication/ Navigation Aids
Types of Charts • VNC (VFR Navigation Chart): • Lambert Conformal Conic Projection, 1:500 000 scale • Used to enable visual navigation (lower level, low speed) • VTA (VFR Terminal Area Chart): • Transverse Mercator Projection, 1: 50 000 scale • Used to illustrate landmarks, call points, and control zones in a terminal area (e.g. Vancouver) • WAC (World Aeronautical Chart): • Lambert Conformal Conic Projection, 1:1 000 000 scale • Designed for visual navigation (higher levels, greater speed)
Symbols on Charts • Charts: • Where to find the chart legend • How to interpret symbols
Measuring Distance • To Measure Distance on a Chart • Use ruler and chart scale
Tracks and Bearings • Track: • Proposed path over the ground • Track Made Good: • Actual path over the ground • Track Error: • Angle between track and track made good • Bearing: • The direction or angle from one point to another