abstract:Remove before flight is a safety warning commonly seen on removable aircraft and spacecraftBasics of Space Flight – The Cassini Saturn-Orbiter Spacecraft components, typically in the form of a red ribbon, to indicate that a device, such as a protective cover or a pin to prevent the movement of mechanical parts, is only used when the aircraft is on the ground (parked or taxiing). On small general aviation aircraft, this may include a pitot tube cover or a control lock.