Abeam

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Across = viewed from the ship in the direction at right angles to the ship's longitudinal axis

Querab or dwars ( Dutch for "quer") is a shipping term and is used less often in aviation .

Querab denotes all directions that are perpendicular to the keel line of the ship (or to the longitudinal axis of the aircraft) on which the observer is located. An object (e.g. another ship, navigation mark, landmark) is “abeam” if it is at right angles to the ship, regardless of the distance. A distinction is made between "port abeam" (left of the direction of travel) and "starboard abeam" (right of the direction of travel). If an object is headed abeam with the compass , the bearing value is 90 degrees above or below the compass course.

Wrong use

Sometimes “at the same height” is incorrectly used synonymously with “abeam”. "At the same amount" refers sailing ships but to the position of each in relation to the true wind , and then ships are only in downwind simultaneously "abeam" and to "the same level".