Garmin Software Version 0719.00 Podręcznik Użytkownika Pobierz pdf (Strona 27)

Garmin G1000 Cockpit Reference Guide for the Socata TBM 850

190-00708-00 Rev. A

1-13

SECTION 1

SYSTEM OVERVIEW

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1.7 VERTICAL NAVIGATION

One of two altitude sources is used by the G1000 when

giving vertical navigation guidance. WAAS GPS altitude is

used when giving guidance for a WAAS approach. Baro

corrected altitude is used when vertical guidance is given

in all other situations.

The G1000 system can use altitude constraints

associated with lateral waypoints to give guidance for

vertical navigation. These altitudes are, depending on the

speciﬁc instance, entered by the pilot or retrieved from the

published altitudes in the navigation database.

The navigation database only contains altitudes

for procedures that call for “Cross at” altitudes. If the

procedure states “Expect to cross at,” the altitude is not be

in the database. In this case the altitude may be entered

manually.

NOTE: All arrival procedure altitudes contained in

the navigation database are for turbojet aircraft only.

Alter or enter altitudes as desired to comply with the

ATC clearance.

When activating or loading an arrival or approach

procedure into an active ﬂight plan, the VNV ‘ALT’ ﬁelds

are populated with any altitudes that can be retrieved

from the navigation database.

Since altitudes loaded with an arrival procedure are

published only for turbojet aircraft, the altitudes are

displayed as white text indicating that the altitudes are

displayed for reference only. An arrival waypoint altitude

may be used (or “designated”) as is, or changed to a

different altitude. An altitude is designated by pressing

the FMS Knob and turning the large FMS Knob to place

the cursor on the desired altitude and pressing the ENT

Key or entering a different value and pressing the ENT

Key. The altitude is now displayed as blue text, indicating

that the altitude is now designated to give vertical speed

and deviation guidance.

Approach waypoint altitude constraints are designated

in the same way as previously described for arrivals.

These altitudes are also displayed as blue text after being

designated for use. Waypoint altitude constraints may

be designated up to, but not including the FAF. The

FAF is always a “reference only” altitude and cannot be

designated, unless the selected approach does not provide

vertical guidance. In this case, the FAF altitude can be

designated.

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