Definition
A ground reference maneuver in which the pilot flies a rectangular path over the ground at a constant altitude, adjusting bank angle and crab angle on each leg to compensate for wind and maintain a uniform distance from the boundaries of the rectangle.
Plain English
A training exercise where you fly a rectangle-shaped path over a field on the ground, keeping the same height and the same distance from each edge, while adjusting for the wind so the shape stays straight and even.
Context Anchor
Seen in basic flight training when practicing ground reference maneuvers before learning or refining traffic pattern work.
Derivation
Rectangular comes from words meaning “straight angle,” which points to the shape: four straight sides with square corners. Course here means the path the airplane is intended to follow over the ground, not a classroom course.
Why Pilots Care
It develops wind correction, coordination, and altitude control needed for safe airport traffic patterns and landings.
Analogy
It is like driving around a city block while a strong crosswind keeps trying to push your car sideways. You keep adjusting so your path still follows the block.
Intuition Check
Do not think of “course” as a class or lesson here. In this term, a rectangular course is the box-shaped path the airplane follows over the ground.
Example Sentence 1
During the lesson, the instructor had the student fly a rectangular course around a section of farmland to practice correcting for a crosswind.
Example Sentence 2
On the crosswind leg of the rectangular course, a steeper bank was used to turn quickly and maintain the rectangular shape despite the tailwind.