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Flight instruments – Garmin G1000 Piper PA-46 Matrix User Manual

Page 85

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190-01108-00 Rev. B

Garmin G1000 Pilot’s Guide for the Piper PA-46 Mirage/Matrix

71

FLIGHT INSTRUMENTS

SY

STEM

O

VER
VIEW

FLIGHT

INSTRUMENTS

EICAS

AUDIO P

ANEL

& CNS

FLIGHT

MANA

GEMENT

HAZARD

AV

OID
ANCE

AFCS

ADDITIONAL

FEA
TURES

APPENDICES

INDEX

When set to ‘Auto’ (default), the GPS CDI scale automatically adjusts to the desired limits based upon the

current phase of flight (Figure 2-27, Table 2-2).

Figure 2-27 Automatic CDI Scaling

2.0 nm

Enroute

(Oceanic if >200 nm
from nearest airport)

0.3 nm

Missed

Approach

1.0 nm

Approach

1.0 nm

Terminal

1.0 nm

Terminal

0.3 nm

Departure

CDI Full-scale Deflection

Refer to accompanying

approach CDI scaling figures

• Once a departure procedure is activated, the CDI is scaled for departure (0.3 nm).
• The system switches from departure to terminal CDI scaling (1.0 nm) under the following conditions:

- The next leg in the departure procedure is not aligned with the departure runway

- The next leg in the departure procedure is not a CA, CD, CF, CI, CR, DF, FA, FC, FD, FM, IF, or TF (see

Glossary for leg type definitions)

- After any leg in the departure procedure that is not a CA or FA

• At 30 nm from the departure airport, the enroute phase of flight is automatically entered and CDI scaling

changes to 2.0 nm over a distance of 1.0 nm, except under the following conditions:

- When navigating with an active departure procedure, the flight phase and CDI scale does not change

until the aircraft arrives at the last departure waypoint (if more than 30 nm from the departure airport) or
the leg after the last departure waypoint has been activated or a direct-to waypoint is activated.

• If after completing the departure procedure the nearest airport is more than 200 nm away from the aircraft

and the approach procedure has not yet commenced, the CDI is scaled for oceanic flight (2.0 nm).

• Within 31 nm of the destination airport (terminal area), the CDI scale gradually ramps down from 2.0 nm

to 1.0 nm over a distance of 1.0 nm; except under the following conditions:

- When navigating with an active arrival route, the flight phase and CDI scale does not change until the

aircraft arrives at the first waypoint in the arrival route (if within 31 nm from the destination airport).

• During approach, the CDI scale ramps down even further (see Figures 2-28 and 2-29). This transition

normally occurs within 2.0 nm of the final approach fix (FAF). The CDI switches to approach scaling
automatically once the approach procedure is activated or if Vectors-To-Final (VTF) are selected.

- If the active waypoint is the FAF, the ground track and the bearing to the FAF must be within 45° of the

final approach segment course.

- If the active waypoint is part of the missed approach procedure, the active leg and the preceding missed

approach legs must be aligned with the final approach segment course and the aircraft must not have
passed the turn initiation point.

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