Overspeed protection, Automatic flight control system – Garmin G1000 King Air C90GT User Manual

Page 461

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190-00663-01 Rev. A

Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT

447

AUTOMATIC FLIGHT CONTROL SYSTEM

SY

STEM

O

VER
VIEW

FLIGHT

INSTRUMENTS

EIS

AUDIO P

ANEL

& CNS

FLIGHT

MANA

GEMENT

HAZARD

AV

OID
ANCE

AFCS

ADDITIONAL

FEA
TURES

APPENDICES

INDEX

OVERSPEED PROTECTION

NOTE:

Overspeed protection is not active in ALT, GS or GP modes.

While Pitch Hold, Vertical Speed, Flight Level Change, Vertical Path Tracking, or an altitude capture mode is

active, airspeed is monitored by the flight director. Pitch commands are not changed until overspeed protection
becomes active. Overspeed protection is provided in situations where the flight director cannot acquire and
maintain the mode reference for the selected vertical mode without exceeding the certified maximum autopilot
airspeed.

When an autopilot overspeed condition occurs, the Airspeed Reference appears in a box above the Airspeed

Indicator, flashing a yellow ‘MAXSPD’ annunciation. Engine power should be reduced and/or the pitch reference
adjusted to slow the aircraft. The annunciation disappears when the overspeed condition is resolved.

Figure 7-46 Overspeed Annunciation

Airspeed

Indicator

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