Which statement about weather factors is false?

• A. Wind speed/direction influence planning
• B. Temperature influence planning
• C. Ocean currents influence planning
• D. Visibility influence planning

Answer: (C)

Weather factors that affect planning in air operations are atmospheric conditions you encounter in flight. Wind speed and direction shape flight paths, airspeed, groundspeed, and landing/tattern margins. Temperature changes air density, affecting lift, engine performance, and climb rate, which influences how much payload you can carry and how the aircraft performs at different altitudes. Visibility directly impacts navigation, obstacle detection, and your ability to safely identify landing zones, especially in low-visibility conditions. Ocean currents aren’t weather factors; they’re water conditions that matter for ships or amphibious operations, not for aviation weather planning. That’s why the statement about ocean currents influencing planning is false.