Dynon Avionics EFIS-D60 Pilots Users Guide - Manual (Page 11)

Product Overview
EFIS-D60 Pilot’s User Guide 2-3
GPS Pitot Static AOA Magnetometers Rate Sensors Accelerometers
Ball X
Altitude X
Airspeed X X
AOA X X X
Turn Rate X* X X X X
Heading X* X X X X X
Attitude X* X X X X
ATTITUDE CALCULATION
The EFIS-D60 artificial horizon display (attitude) is generated via a complex algorithm using a multitude of
sensors. Your EFIS attitude is not reliant on any single external system. It can provide an accurate attitude -
even in the event of airspeed loss (due to icing or other blockage) - via a redundant GPS aiding source. In
normal operation the instrument uses airspeed to provide superior attitude accuracy. If a problem
develops with your airspeed reading, a properly connected and configured GPS source acts as a
substitute. When in this mode the instrument continues to provide accurate attitude.
*If a GPS is present upon the loss of airspeed, the EFIS-D60 uses the GPS ground speed in its attitude calculation. When
in this mode, a magenta GPS ASSIST message is displayed over the horizon and the ground speed is displayed below the
IAS indicator (as shown at right). If the connectivity with the GPS fails while in GPS assist
mode, the attitude continues to be displayed, using the last known GPS ground speed as a
reference. This mode is flagged on the horizon with a yellow CROSS CHECK ATTITUDE
message. In the very rare case that this sequence of event occurs, the EFIS-D60’s attitude
accuracy is reduced; use other references in the aircraft to cross-check against the EFIS-D60’s
attitude.