Available as an option on GTN series touschscreen avionics, as well as legacy GNS 430W/530W navigators, HTAWS (Helicopter Terrain Awareness and Warning System) offers “forward looking” terrain and obstacle avoidance (FLTA) capability to alert in advance where potential hazards may exist.

Maintain Safe Separation

Providing visual and aural advisories to help keep pilots safely separated from hazardous terrain, this TSO-C194-approved technology is engineered specifically for helicopter mission profiles. WAAS GPS position information is compared with your GTN series and GNS 430W/530W units’ internal terrain/obstacles databases to determine conflict scenarios. If your helicopter has inadequate terrain and/or obstacle clearance ahead, based on the system’s projected flight path, HTAWS caution and warning alerts are issued to you. Accompanying FLTA voice alerts also indicate the relative threat level.

In addition to terrain and obstacle alerting, Garmin’s HTAWS system also features voice callouts, or VCOs, which audibly announce the helicopter’s height above terrain when descending below 500 feet. VCO altitude callouts operate in all HTAWS modes, and Garmin’s technology allows you to select multiple callouts, in one hundred foot intervals, descending from 500 down to 100 feet.