Garmin G5 Pilot's Manual page 69

3.2.5.2.7 A
Several situations can occur while VNAV Mode is active which cause the
AFCS to revert to Pitch Hold Mode:
• The aircraft does not level off at the selected altitude.
• Vertical deviation exceeds 200 feet during an overspeed condition.
• Vertical deviation becomes invalid (the Deviation Indicator is removed
from the PFD Page).
Following a reversion to Pitch Hold Mode, VNAV Mode becomes armed to
allow for possible profile recapture.
3.2.5.2.8 VNAV T
VNAV Target Altitude Capture is analogous to Selected Altitude Capture Mode and
is armed automatically after the VNV Key (GMC 305) or VNAV (GMC 307/507) is
selected if the VNAV Target Altitude is to be intercepted before the Selected Altitude.
The annunciation 'ALTV' indicates the VNAV Target Altitude is to be captured. Refer to
Section 2.3 (Vertical Navigation) for more information on setting up the VNAV target
altitude.
As the aircraft nears the VNAV Target Altitude, AFCS automatically transitions to
VNAV Target Altitude Capture Mode with Altitude Hold Mode armed. This automatic
transition is indicated by the green 'ALTV' annunciation flashing for up to 10 seconds
and the appearance of the white 'ALT' annunciation.
At 50 feet from the VNAV Target Altitude, the AFCS automatically transitions from
VNAV Target Altitude Capture to Altitude Hold Mode and selects the VNAV target
altitude as the new Autopilot Altitude Reference. As Altitude Hold Mode becomes
active, the white 'ALT' annunciation moves to the active vertical mode field and flashes
green for 10 seconds to indicate the automatic transition.
190-02072-00 Rev. J G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft
R
UTOMATIC EVERSION TO
A
ARGET
P H
ITCH OLD
C
LTITUDE APTURE
AFCS
M
ODE
M (ALTV)
ODE
55