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A flight maneuver in which an airplane makes a complete rotation on its longitudinal axis while approximately maintaining its original direction.
(Aeronautics) a flight manoeuvre in which an aircraft rolls about its longitudinal axis while following a spiral course in line with the direction of flight
(Aeronautics) (intr) (of an aircraft) to perform a barrel roll
a maneuver in which an airplane executes a complete roll by rotating once around its longitudinal axis while moving forward.
bar′rel-roll`, v.i. -rolled, -roll•ing.