A pilot can assume that planned dead-reckoning headings and times remain unaffected by wind.

### Why this is right Wind affects the aircraft’s movement over the ground, so the planned heading and time may not produce the intended track and checkpoint arrival. The material explicitly says these calculated parameters can be affected by wind and should be corrected. ### The concept A heading is the direction the aircraft points, while the path over the ground can differ when wind is present. Wind can push the aircraft sideways and can increase or decrease its progress along the route. Therefore, a pilot accounts for wind when preparing or updating a dead-reckoning plan. Visual confirmation at checkpoints helps reveal whether the estimate remains accurate. ### The other options - **True**: this would be correct only if wind had no effect on the planned ground track or progress, which is contrary to the material. ### Terms - **Heading**: the direction in which the aircraft’s nose points. - **Dead reckoning**: estimating position from planned movement and elapsed time. ### Remember Wind changes movement over the ground, so do not treat an uncorrected plan as guaranteed.