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Garmin to offer ADS-B units for helicoptersGarmin to offer ADS-B units for helicopters

Garmin International will offer the GDL 84H and GDL 88H Automatic Dependent Surveillance-Broadcast (ADS-B) datalink specifically designed for helicopters later this year. The units meet equipage requirements for ADS-B Out while receiving ADS-B In traffic and weather on a mobile device or compatible display in the cockpit.

TargetTrend relative motion technology helps pilots visualize the trend of the traffic threats as it relates to their aircraft, while dual-link technology provides pilots with traffic information.

On Scene mode minimizes nuisance traffic alerts when intentionally operating in close proximity to other helicopters during hovering operations such as news gathering. The pilot-activated technology acknowledges nearby traffic by reducing alerts while still providing alerts for new traffic threats. Pilot action is not required when resuming normal flight operations. On Scene mode is available with the GTN 650/750 touch screen avionics and GDL 88H.

TerminalTraffic provides pilots with a picture of ADS-B-equipped aircraft and ground vehicles in the airport environment. ADS-B-equipped aircraft in flight are easily distinguished from ground vehicles and taxiing aircraft, which are displayed using distinct colors and symbols. All of this information is presented to the pilot on a SafeTaxi diagram with reference to runways, taxiways, and hangar locations. TerminalTraffic also helps pilots distinguish potential traffic conflicts while in the airport environment by minimizing nuisance alerts from fixed-wing aircraft and abbreviating select alerts when performing unique helicopter maneuvers such as hovering.

Garmin expects to receive a supplemental type certificate for the installation of the GDL 84H and GDL 88H in several helicopter models in the second quarter of 2015. The GDL 84H system is expected to cost $5,995, while the GDL 88H will cost $4,795.

Alton Marsh

Alton K. Marsh

Freelance journalist
Alton K. Marsh is a former senior editor of AOPA Pilot and is now a freelance journalist specializing in aviation topics.
Topics: Helicopter, Helicopter Association International, Avionics

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