What is the crosswind component for a Rwy 13 landing when the surface wind is 180° at 27 knots?

To determine the crosswind component when landing on Runway 13 with a wind direction of 180° at 27 knots, it's essential to understand the relationship between wind direction, runway orientation, and how to calculate the crosswind component.

Runway 13 is oriented at 130° from true north. A wind coming from 180° is directly from the south, which means it is aligned with the runway's approach direction but not perpendicular to it. To find the crosswind component, we can use the formula:

Crosswind Component = Wind Speed × sin(angle)

First, we need to find the angle between the wind direction and the runway orientation. The angle can be determined as follows:

• Wind direction = 180°

• Runway direction = 130°

• Angle = 180° - 130° = 50°

Now, we apply the wind speed:

1. The wind speed is 27 knots.

2. We calculate the sin(50°) since it is the value we need for the calculation.

Using a calculator or trigonometric tables, we find that sin(50°) is approximately 0.7660.

Now we can compute the crosswind component:

Crosswind Component = 27 knots