Automatic Disengagement

Automatic disengagement typically occurs due to a failure. Automatic disengagement is annunciated by a flashing ‘AP’, alternating red on white and white on red in the Autopilot Status field. Also, the autopilot disconnect aural alert will be heard. Both the annunciation and the aural alert will continue until acknowledged by pressing the AP DISC button or the MET switch.

Automatic Disconnect

Figure 6-6 Automatic Disconnect Annunciation

Manual Disengagement

The autopilot may also be manually disengaged by pressing the AP DISC button, the GO AROUND button, or by pressing the AP Key on the MFD. Manual disengagement is annunciated by a five-second flashing yellow ‘AP’ in the Autopilot Status field and by a two- second Autopilot disconnect aural alert.

Manual Disconnect

Figure 6-7 Manual Disconnect Annunciation

Control Wheel Steering

Pressing and holding the CWS button disengages the servos from the flight control surfaces and allows manual manuevering of the aircraft. At the same time, the flight director is synchronized to the aircraft attitude during the maneuver. The ‘AP’ annunciation is temporarily replaced by ‘CWS’ in white until the CWS button is released.

Control Wheel Steering

Figure 6-8 CWS Annunciation

SECTION 6 – AUTOMATIC

FLIGHT CONTROL

6.4LOSS OF DATA

In general, a flashing yellow mode annunciation indicates either the loss of sensor data (AHRS, ADC, or GIA) or loss of navigation data (VOR, LOC, or GPS) required to compute commands.

When such a loss occurs, the system automatically reverts to the default mode for the affected axis (wings level ROL for roll axis, PIT for pitch axis). The flashing annunciation stops when the pilot presses the affected mode button or selects another mode for the axis. If no pilot action is taken, the flashing annunciation stops after ten seconds.

Figure 6-9 Loss of VOR Signal

6.5PITCH AXIS MODES

Mode annunciations for active pitch axis modes are shown in green during normal operation. Note the Go- Around button is not located on the MFD.

AFCS Key

AFCS Mode

Annunciation

FD/AP only

Pitch Hold (Default)

PIT

ALT

Altitude Hold

ALT nnnnn FT

VS

Vertical Speed

VS nnnn FPM

FLC

Flight Level Change

FLC nnn KT

APR

Glideslope (vertical

GS

 

component of Approach)

 

GO

Go Around

GA

AROUND

 

 

The default pitch axis mode is Pitch Hold (PIT). When no other pitch axis modes are selected, this is the active pitch axis mode when the autopilot and/or flight director is engaged.

Garmin G1000 Cockpit Reference Guide for the Columbia 350/400

6-3

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Garmin Columbia 350/400 manual Loss of Data, Pitch Axis Modes, Automatic Disengagement, Manual Disengagement
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Columbia 350/400 specifications

Garmin has long been a leader in navigation and communication technologies, and the Columbia 350/400 series epitomizes its commitment to providing high-quality devices for adventurers and outdoor enthusiasts. These handheld GPS units offer an array of features that cater to both casual hikers and serious explorers.

One of the standout characteristics of the Garmin Columbia 350/400 is their robust design which is built to withstand the rigors of outdoor use. With an IPX7 water resistance rating, these devices can endure rain and even immersion in water, allowing users the confidence to carry them on any expedition. The rugged casing and reliable construction also ensure optimal durability in harsh environments.

Both models feature a high-sensitivity GPS receiver that ensures accurate positioning even in challenging environments with thick foliage or urban canyons. With its advanced satellite reception technology, users can expect fast and precise location tracking, which is critical for effective navigation.

The Columbia 350/400 series comes with a vibrant, easy-to-read display that enhances visibility under varying lighting conditions, making it easier for users to navigate trails and roads alike. The intuitive interface allows for smooth operation, enabling users to access their maps, tracks, and waypoints quickly.

Navigational maps are a vital component of these devices. Garmin equips the Columbia series with preloaded topographical maps, providing detailed terrain information that is essential for off-road navigation. Users can also customize their maps and download additional topographic data, ensuring they have the most accurate and relevant information for their adventures.

Another key feature of the Columbia 350/400 series is their long battery life, which ensures that users can rely on them during extended trips. The devices can run for hours on end and even incorporate a battery-saving mode to extend usability during longer journeys.

Additionally, the Columbia 350/400 supports various outdoor and fitness tracking features. Users can monitor their speed, distance, and elevation gain, enabling them to keep track of their physical performance. This makes the devices suitable for athletes and outdoor enthusiasts alike.

Overall, the Garmin Columbia 350/400 series combines durability, advanced navigation technology, and user-friendly features, making it an excellent choice for anyone looking to explore the great outdoors with confidence. Whether you're hiking, trekking, or simply navigating unfamiliar terrain, these handheld GPS units provide the tools necessary to enhance your experience and ensure you never lose your way.
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