Everyone knew it was coming, but the oft-delayed entry of the wide area augmentation system into the world of GPS is still somewhat startling in its potential. At the very least, WAAS promises more ...

It's common misconception, but +V advisory glide slope isn't same as LPV glide path.

Advisory glidepaths on non-precision approaches (LNAV+V) are not guaranteed obstacle-clear below the Minimum Descent Altitude (MDA), posing a safety risk if pilots mistake them for precision approach ...

Controlled flight into terrain (CFIT) is a continuing problem area for aviation safety. Many CFIT accidents occur in the approach-and-landing phase - and non-precision approaches, those without ...