Definitions Found:
Permission for an aircraft to take off or land at an airport
- clearancesPermission for an aircraft to take off or land at an airport
- clearancePermission for an aircraft to take off or land at an airport
- harrierone- or two-seat British-American fighter, both an attack and a reconnaissance aircraft, featuring a turbofan engine with a directable thrust that enables it to land and take off vertically
- scramblingOrder (a fighter aircraft or its pilot) to take off immediately in an emergency or for action