Definition
The actual track an airplane follows over the ground during the initial climb after takeoff when a wind is blowing across the runway. Because the wind pushes the airplane sideways, the pilot must turn the nose slightly into the wind (crab) so that the airplane's path over the ground stays aligned with the extended centerline of the runway rather than drifting downwind.
Plain English
It's the path the airplane traces across the ground while climbing out, when the wind is blowing from the side. The pilot points the nose a little into the wind so the airplane keeps tracking straight out from the runway instead of being blown sideways.
Context Anchor
Seen during takeoff and initial climb, especially when keeping the airplane aligned with the runway centerline after liftoff.
Derivation
Crosswind = a wind blowing across (rather than along) the runway. Flightpath = the path the airplane actually travels through the air and over the ground. Together: the path flown during climb-out in a crosswind.
Why Pilots Care
Maintaining this flightpath keeps the aircraft on the intended departure route, ensures obstacle clearance, and prevents drift that could lead to loss of directional control or runway incursion risks.
Grounding Statement
Picture the airplane climbing away from the runway while a side wind tries to slide it sideways; the corrected flightpath is the line it actually follows when the pilot holds it on course.
Intuition Check
Do not assume the crosswind climb flightpath is the same as the direction the nose is pointing. In a crosswind, the nose may point slightly into the wind while the airplane’s actual path stays aligned with the intended departure path.
Example Sentence 1
With a steady wind from the left, the pilot crabbed slightly into the wind to maintain the crosswind climb flightpath along the extended centerline.
Example Sentence 2
The crosswind climb flightpath must be held until reaching a safe altitude where a turn can be made without risking drift into obstacles.