T-6A Pilot Handbook.pdf

Sec 2. Cockpit InstrumentationEADI (Electronic Attitude Display Indicator)The Electronic Attitude Director Indicator lies at the very heart of the Texan IIEFIS system and is the primary flight aid used when flying. The EHSI and EADImake up the core of the EFIS system.EADI Composite ModeIn composite mode, the EADI is displayed with an Compass Rose and CDIneedle overlaid on top to aid in primary navigation should either the EADI orEHSI display screen fail.The images below show the EADI in VOR and GPS controlled compositemode. This is one of the more common modes used for primary navigationand displays a great deal of information at a glance for the pilot.EFIS Composite Mode can be toggled on or off using the 'CMP' button on thebottom left of either display.The top left shows the following information; Distance in nautical miles from the aircraft to the navigation source(NAV1). Current indicated airspeed of the aircraft. Estimated time of arrival at the current navigation source.The top right shows the following information; Current navigation course heading set by the pilot in the EFIS system. Current heading set by the pilot in the EFIS system.EADI in VOR Composite Mode