labbadabba
Pattern Altitude
Great little article to see what could happen if you follow a LNAV+V like you would an LPV or ILS. The MDA still exists.
http://www.planeandpilotmag.com/article/tripped-up-by-stepdowns/#.WjLIFv-nGG4
http://www.planeandpilotmag.com/article/tripped-up-by-stepdowns/#.WjLIFv-nGG4