TruTrak EFIS AP (8300-057C) - Manual (Page 16)

TruTrak Flight Systems 14 EFIS Autopilot Installation Manual
April 2009 8300-057 Rev D
VNAV
VNAV (vertical navigation) is the
ability to command the EFIS AP to
fly to a specified altitude in a
specified distance (max 99 miles).
Maximum VS descent is 3000
ft/min.
The FD and or AP must be engaged.
Click the ALT button and set your
new altitude below your current
altitude, do NOT click [ENTER].
Click the DIST button to select the
distance to the new altitude, Click
the right knob [ENTER].
The display will show
VNAV and
the altitude and distance to the new
altitude hold. When the aircraft
reaches the new altitude, the EFIS
will enter altitude hold.
NAV Indicator
With the serial wires from the SL30 or ARINC Converter to the EFIS
connected. The EFIS will display the VOR / ILS NAV information on
the HSI. This information does not command the FD or AP. With a
valid NAV input, an ILS or VOR will be displayed over the CRS
label. Press and Hold the CRS button to display the information on
the HSI. The OBS radial will be displayed on the NAV unit also.
The SL30 Head Type must be set for SERIAL output (see SL30
installation manual)
AP LEVEL BUTTON (option)
The AP LEVEL button must be
installed in easy reach of both the
pilot and copilot positions. When
depressed, the AP button will always
do the same function. The Auto
Pilot and FD will engage and
capture current Track and
Altitude. If the Auto Pilot is
engaged, the AP will change to
Track and Altitude hold.
Any manual input change, other than TRK change, on the EFIS AP after the AP LEVEL button has been
press will return the AP to normal function.
The CWS if installed will function as normal.