What is the headwind component for a takeoff from Runway 13 if the headwind is 7 knots?

When considering the headwind component for takeoff, it's important to understand that the headwind is defined as the wind blowing directly against the direction of takeoff. In this scenario, if the headwind is 7 knots and you are taking off from Runway 13, this means the wind is coming from the direction of 130 degrees toward the aircraft.

Because the headwind is stated to be 7 knots, this value directly represents the wind component that is opposing the aircraft during its takeoff roll. A headwind assists the airplane in achieving the necessary lift for takeoff, thereby enhancing performance metrics such as takeoff distance.

In this context, the correct answer indicates that the entire headwind value of 7 knots directly impacts the aircraft's performance during the takeoff phase, as there aren't any other factors or wind components involved in this straightforward calculation.