Which statement about World Aeronautical Charts is true?

• A. They show weather forecasts
• B. They are replaced hourly
• C. They are designed for navigation by moderate speed aircraft and have a scale of 1:1,000,000
• D. They include only airports

Answer: (C)

World Aeronautical Charts are intended for en-route navigation over wide areas, so they use a small scale that lets pilots view long routes and major navigation features on one sheet. The scale is about 1:1,000,000, which provides enough geographic context for planning and following routes between airports across large regions. This makes them well suited for aircraft flying moderate speeds that cover substantial distances. Weather forecasts and weather-related data aren’t the purpose of these charts; weather information comes from separate charts and forecast products. Updates aren’t hourly; WACs follow periodic chart cycles rather than a rapid refresh. And these charts include much more than airports—airways, navigation aids, topography, controlled airspace boundaries, and other navigational features are shown to support route planning over large areas.