What is the approximate crosswind component for landing on Rwy 30 with a wind from 020° at 15 kts?

What is the approximate crosswind component for landing on Rwy 30 with a wind from 020° at 15 kts?

• A. 5 knots
• B. 10 knots
• C. 15 knots
• D. 20 knots

Answer: (C)

To determine the approximate crosswind component for landing on Runway 30 with a wind from 020° at 15 knots, it is essential to understand the concept of wind components relative to the runway direction. Runway 30 is aligned at a magnetic heading of 300°, which means that the crosswind component can be calculated by finding the angle between the runway heading and the wind direction. In this case, the wind is coming from 020°. To find the angle between the wind direction and the runway, you take the difference between 300° and 20°, yielding an angle of 280° or simply 80° when considering crosswind calculations. The sine of this angle will give you the crosswind component. The crosswind component is calculated using the formula: Crosswind Component = Wind Speed × sin(angle). Substituting the values: - Wind Speed = 15 knots, - Angle = 80° (the angle relative to the runway). Calculating the sine of 80° yields approximately 0.98: Crosswind Component = 15 knots × sin(80°) ≈ 15 knots × 0.98 ≈ 14.7 knots. This result rounds to about 15 knots.

To determine the approximate crosswind component for landing on Runway 30 with a wind from 020° at 15 knots, it is essential to understand the concept of wind components relative to the runway direction. Runway 30 is aligned at a magnetic heading of 300°, which means that the crosswind component can be calculated by finding the angle between the runway heading and the wind direction.

In this case, the wind is coming from 020°. To find the angle between the wind direction and the runway, you take the difference between 300° and 20°, yielding an angle of 280° or simply 80° when considering crosswind calculations. The sine of this angle will give you the crosswind component.

The crosswind component is calculated using the formula:

Crosswind Component = Wind Speed × sin(angle).

Substituting the values:

• Wind Speed = 15 knots,

• Angle = 80° (the angle relative to the runway).

Calculating the sine of 80° yields approximately 0.98:

Crosswind Component = 15 knots × sin(80°) ≈ 15 knots × 0.98 ≈ 14.7 knots.

This result rounds to about 15 knots.