Which landing runway, when wind is 140 degrees at 15 knots, would have a crosswind component of 9 knots to the left?

To determine which runway would have a crosswind component of 9 knots to the left with wind coming from 140 degrees at 15 knots, it’s important to understand how to evaluate wind direction in relation to the runway heading.

First, we need to identify the runway headings. Runway headings are typically expressed in terms of magnetic degrees. For this question, the relevant runway headings are:

• Runway 22: 220 degrees

• Runway 17: 170 degrees

• Runway 13: 130 degrees

• Runway 03: 030 degrees

Next, we must assess the relationship between the wind direction (140 degrees) and the runway headings.

• When using runway 22 (220 degrees), the wind direction of 140 degrees creates a crosswind component to the left because the wind is coming from the southeast and blowing toward the northwest relative to the runway direction. This wind from 140 degrees will push the aircraft to the left as it approaches runway 22, leading to a crosswind component.

To confirm the strength of this crosswind, we can apply some trigonometric calculations.

1. Find the angle between the wind direction (140 degrees) and the runway heading (220 degrees).