1. A navigational error in which a vessel, aircraft, or other craft deviates from its intended route or heading
The pilot's off-course error caused the plane to miss its destination by several miles.
O erro de desvio de curso do piloto fez o avião perder seu destino por vários quilômetros.
2. In aviation and maritime contexts, an unintended departure from a planned flight path or navigation course
The navigation system detected an off-course error and automatically corrected the trajectory.
O sistema de navegação detectou um erro de desvio de curso e corrigiu automaticamente a trajetória.