Description The VAPP (VOR Approach) mode provides the capability to steer the aircraft to fly a VOR nonprecision
approach.
VOR must be selected by the pilot in command as the Primary Navaid via the NAV button on the
Display Controller (DC) and displayed as the CDI and the associated digital readout on the HSI.
• Aircraft axes control is performed via roll attitude for VAPP.
Engagement • Arming:........... Press APP button on Guidance Controller
• VAPP mode is armed
• HDG mode is automatically engaged and the present heading held
References
and performance
The VOR Course can be set and adjusted by the COURSE knob on the Remote Instrument Controller
(RIC).
VOR Course can also be synchronized with the current VOR bearing value by pressing the
PUSH DIR button on COURSE knob on the RIC.
At VOR radial capture, HDG mode automatically disengages and VAPP mode automatically engages,
so the helicopter turns to track the selected radial.