For landing on runway 17 with winds from 140 degrees at 20 knots, what is the crosswind component?

To determine the crosswind component for landing on runway 17 with winds from 140 degrees at 20 knots, we need to first understand the orientation of the runway and the direction of the wind.

Runway 17 is oriented at a heading of 170 degrees. Winds coming from 140 degrees indicate they are blowing towards 320 degrees. The crosswind component is the portion of the wind that acts perpendicular to the runway heading.

To calculate the crosswind component, we can use the following formula:

[ \text{Crosswind component} = \text{Wind speed} \times \sin(\text{Wind angle}) ]

Where the wind angle is the angle between the wind direction (140 degrees) and the runway (170 degrees). The difference between these angles is:

[ 170 - 140 = 30 \text{ degrees} ]

Now, we can calculate the crosswind component:

1. The wind speed is 20 knots.

2. The sine of 30 degrees is 0.5.

Thus, the crosswind component is:

[ \text{Crosswind component} = 20 \text{ knots} \times \sin(30^\circ) = 20 \text{ knots} \times