Ground proximity warning system

A diagram showing two aircraft paths, the lower of which would trigger GPWS

A ground proximity warning system (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. The United States Federal Aviation Administration (FAA) defines GPWS as a type of terrain awareness and warning system (TAWS).[1] More advanced systems, introduced in 1996,[2] are known as enhanced ground proximity warning systems (EGPWS), a modern type of TAWS.

  1. ^ "Archived copy" (PDF). Archived from the original (PDF) on January 19, 2016. Retrieved January 15, 2009.{{cite web}}: CS1 maint: archived copy as title (link)
  2. ^ "Enhanced Ground Proximity Warning System (EGPWS) – Honeywell Aerospace Engineering". 1.honeywell.com. Archived from the original on October 2, 2011. Retrieved October 17, 2011.