What does the Wind Data Block depict?

• A. The wind and temperature information for all fixes before Top of Climb
• B. The wind and temperature information for all fixes past Top of Climb and prior to Top of Descent
• C. Enroute forecast winds only
• D. Descent forecast winds only

Answer: (B)

The Wind Data Block is where forecast winds (and temperatures) are shown for the enroute portion of the route, at each fix along the path. It covers all fixes after Top of Climb and before Top of Descent, providing the data needed to compute true airspeed, wind correction, and ground speed as you fly the enroute segment. This block helps with accurate fuel and performance planning by giving you the wind and temperature information along the route where those factors matter for cruise planning.

So, the Wind Data Block depicts wind and temperature information for all fixes after climb begins and before descent starts. It does not include the climb segment or the descent segment only, and it includes both wind and temperature, not just winds.