

There are many more installation specific functions that not all aircraft utilize. Later software versions include temperature correction for VNAV, the capability to display and control TAWS and AFIS. There is also an MMMS (Multi Mission Management System) version that adds search capabilities. The latest 1000 series software includes WAAS based RNAV approaches. The UNS series isn't all that difficult to operate but be aware that there are several different software levels that provide different capabilities.
