Avidyne Corporation is working alongside UK-based Horizon Design Services and has received UK CAA approval and FAA validation of an Approved Model List-Supplemental Type Certificate (AML-STC) for installation of the Avidyne IFD-Series FMS/GPS/NAV/COM systems as replacements for legacy GNS-series navigators in nine different helicopter models.

“This AML-STC provides a streamlined basis for installation of the Avidyne IFDs in a broad range of popular helicopters, eliminating the need for dealers and MRO facilities to perform costly field approvals with these avionics upgrades,” says Avidyne president, Dan Schwinn. “We have had a lot of success with AML-STCs in the fixed-wing market, and we are really pleased that Horizon was able to move forward with this helicopter AML.”

“This Part 27 AML-STC covers the installation of the IFD5XX/4XX equipment as replacements for legacy GNS series navigators into nine different helicopter models, comprising a market of over 20,000 aircraft,” adds Michael Hodby, MD of Horizon Design Services. “We are making this STC package available for helicopter MROs at a nominal cost, allowing for an easier transition from ageing GNS systems to the highly capable Avidyne IFD series slide in replacement navigators.”

The Avidyne IFD series are modern slide in replacements for legacy GNS430/530/W series navigators, and can utilise the existing GNS trays, connectors and wiring, dramatically reducing installation time and cost. The IFDs are well suited for helicopter operations with both knob/button and touch screen controls, 3D synthetic vision, HTAWS, RS-170 video support, heliport databases, and display of traffic and weather.

The Horizon AML-STC package for helicopters can be purchased by authorised dealers and MROs directly from Horizon Design Services for 2,500 USD per aircraft.