The following displays are from the original AMSADD and the newer
displays are in development and will be posted when testing is complete.

****Flight Profile Displays****
Two different displays; cockpit display and the "App" display.


Cockpit Indication and "App" Display.

Aircraft on ground and AMSADD is initialized.
AMSADD is in the "taxi mode".

Cockpit Indication
Aircraft on takeoff roll on runway.
Ground speed over 60 knots.
AMSADD is in the "takeoff mode"

Cockpit Indication
Aircraft is within 200 feet of the MSA after takeoff and has left the airport area.
AMSADD is in the "MSA mode (flight)".


Aircraft at or above the MSA

Cockpit Indication >

Aircraft enters an area of lower MSA

Cockpit Indication >

Aircraft approaches higher MSA

Cockpit Indication >
The pilot has over two minutes to make a decision regarding the higher approaching MSA.

Aircraft flies into higher MSA

Cockpit Indication >
The pilot has over one minute before the GPWS sounds an aural warning. Since the MSA is 2000 feet above the mountainous terrain, the eminent danger is less then the other systems allow.

****Enhanced Approach Mode****

Over one half of all CFIT accidents occur on approach.

AMSADD is the only terrain awareness system that monitors your altitude and course to the runway threshold every 1/2 mile while in the airport area during precision or non precision approaches.

Aircraft approaches Final Approach Fix

Cockpit Indication >
In this example, Ontario, California airport is shown on the AMSADD display. Since the aircraft has just entered the airport area, both runways are protected until the aircraft is closer to the runway intended for landing.

Aircraft at Final Approach Fix

Cockpit Indication >
The aircraft is now at the FAF and the AMSADD system has automatically identified the runway for the approach based on aircraft position at the FAF.

Aircraft low on approach

Cockpit Indication >
The "CHECK ALTITUDE" display indicates that the aircraft has deviated from the correct altitude from where if should be during any part of the approach. This mode works for ADF, GPS, VOR, and ILS approaches. IMPORTANT....Anytime the aircraft drifts from the runway approach corridor, the AMSADD computer reverts back to the MSA (flight) mode and displays the MSA.

Aircraft approaching threshold

Cockpit Indication >
As the aircraft approaches the end of the runway, the AMSADD display goes blank in order not to be a distraction.

****Missed Approach - Go Around****

In the event of a missed approach or go around, the MSA display reverts to a "missed approach" mode. Once the missed approach has commenced and has left the airport area, AMSADD reverts back to the "take off" mode. When leaving the airport area, the "look ahead" feature is activated and the AMSADD system returns back to normal operation.

History of Ground Proximity Warning System Comparisons Psychology of Colors
 Flight Tests Evolution of AMSADD