If the tower-reported surface wind is 010° at 18 knots, what is the crosswind component for a Rwy 08 landing?

To determine the crosswind component for a runway 08 landing with a reported surface wind of 010° at 18 knots, it's important to first understand the relationship between the wind direction and runway orientation. Runway 08 is aligned on a bearing of 080°.

The crosswind component can be calculated using the formula:

Crosswind Component = Wind Speed × sin(Angle between Wind Direction and Runway Orientation)

The wind is coming from 010°, which means it is blowing towards 190° (180° plus the wind direction). To find the angle between the wind direction (010°) and the runway (080°), we can perform the following calculation:

1. Calculate the angle:

• Angle = Runway Direction - Wind Direction

• Angle = 80° - 10° = 70°

2. Now, use this angle in the sine function:

• Crosswind Component = 18 knots × sin(70°)

Using a scientific calculator or sine values:

• sin(70°) is approximately 0.9397.

Now, calculate the crosswind component:

• Crosswind Component = 18 knots × 0.9397 ≈ 16.89 knots.

Rounding