Lag Time

The amount of time elapsed between when the PTT button is pressed and when the Speech Recognition engine is activated. Figures lower than 100 are normal. Figures higher than this may result in poor recognition performance.

Landing Sequence

The order in which the aircraft in an exercise are to land on the runway. It is displayed in the Inbound Window. The sequence can be changed by the student to provide additional practice, and the display changed accordingly.


The component of the Instrument Landing System that provides navigation guidance along the extended centreline to the runway.


A component of the Instrument Landing System that marks the geographical location on the runway extended centreline at which the Glide Path passes through the ILS commencement altitude. It allows the pilot to locate that point to carry out an approach to the runway, using the ILS.