Dynon Avionics, Inc. has released software version 5.1 for its EFIS (Electronic Flight Instrument System) and EMS (Engine Monitoring System) products. The software upgrade is available free to all existing EFIS-D10A, EFIS-D100, FlightDEK-D180, EMS-D10, and EMS-D120 customers and will ship with new instruments.
Dynon Avionics EFISs are installed in thousands of aircraft and are used in everything from VFR-equipped Cub replicas to technically advanced aircraft capable of “hard” IFR, according to company officials. With this latest software update, the Air Data, Attitude, Heading Reference System (ADAHRS) inside every Dynon EFIS receives a free performance upgrade with the ability to provide a reliable artificial horizon even when major systems in the aircraft have failed.
Dynon’s ADAHRS has previously required a valid airspeed reading through connections to the pitot/static system in order to maintain an accurate attitude in all flight regimes. When a Dynon Avionics EFIS is upgraded to version 5.1 and has a GPS connected to it, GPS ground speed can be automatically substituted for airspeed when the EFIS detects that the airspeed indication has failed (usually because of an iced, blocked, or otherwise disconnected pitot). When this happens, the EFIS annunciates that its attitude indication is in a “GPS Assist” mode. The EFIS display also shows GPS ground speed next to the failed airspeed indication to help the pilot maintain situational awareness. When in GPS Assist mode, the attitude provided by Dynon EFIS systems continues to be accurate, according to company officials.
With the 5.1 update, Dynon’s recently-released autopilot also receives enhanced IFR capability, including True Preselects; VOR/Localizer Autopilot Tracking; and GPS Steering.
For more information: 425-402-0433 or DynonAvionics.com.
