
Garmin G1000 Cockpit Reference Guide for the Socata TBM 850
190-00708-00 Rev. A
SECTION 6 – AUTOMATIC
FLIGHT CONTROL
6-12
Figure 6-13 Vertical Path Tracking Mode
VNV Target Altitude Capture ArmedVertical Path Tracking Active
VNV Target
Altitude
Vertical Deviation
Indicator (VDI)
Required Vertical
Speed Indication
(RSVI)
GPS is Selected Navi-
gation Source
Terminal Phase of
Flight
Automatic Reversion to Pitch Hold Mode
Several situations can occur while Vertical Path
Tracking Mode is active which cause the flight director to
revert to Pitch Hold Mode:
• Vertical deviation exceeds 200 feet during an
overspeed condition.
• Vertical deviation experiences a discontinuity that
both exceeds 200 feet in magnitude and results in the
vertical deviation exceeding 200 feet in magnitude.
Such discontinuities are usually caused by flight plan
changes that affect the vertical profile.
• Vertical deviation becomes invalid (the Vertical
Deviation Indicator is removed from the PFD).
• A display enters Reversionary Mode (this does not
apply to an active vertical direct-to).
Unless VNV is disabled, Vertical Path Tracking Mode
and the appropriate altitude capture mode become armed
following the reversion to Pitch Hold Mode to allow for
possible profile recapture.
Non-Path Descents
Pitch Hold, Vertical Speed, and Flight Level Change
modes can also be used to fly non-path descents while
VNV flight control is selected. If the
VS or FLC Key is
pressed while Vertical Path Tracking Mode is selected,
Vertical Path Tracking Mode reverts to armed along with
the appropriate altitude capture mode to allow profile re-
capture.
Figure 6-14 Flight Level Change VNV Non-Path Descent
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