NAVBLUE is the first data service provider (DSP) to operationally support Take-Off Surveillance 2 (TOS 2) for Airbus’ A320 and A330 aircraft families. TOS 2 is an Airbus avionics function designed to monitor aircraft position, with respect to the runway and calculate the lift-off distance with all engines running, to check whether the aircraft can safely take-off.
TOS 2 avionics relies on accurate information stored in the navigation database (NDB). TOS 2 warnings will be available only at airports, where the NDB contains ‘airport data validity check’ flag.
