SECTION 2

FLIGHT INSTRUMENTS

2.3ALTIMETER

Altitude Select Bug

 

 

 

Selected Altitude

 

 

 

 

 

 

Box

 

 

Altitude Trend

Vector

Current Altitude

Barometric Setting

Box

Figure 2-7 Altimeter

Altitude Select Bug

The Altitude Select Bug is displayed at the selected altitude or, if the selected altitude is beyond the altitudes currently displayed, the bug is displayed at the top or bottom of the display (whichever is closest to the selected altitude).

Set the Selected Altitude Bug:

Turn the ALT Knobs to set the Altitude Select Bug. The small ALT Knob sets the hundreds and the large ALT Knob sets the thousands. This altitude also appears in the Selected Altitude Box above the Altimeter.

Altitude Trend Vector

The end of the trend vector displays approximately what the altitude will be in 6 seconds if the current rate of vertical speed is maintained.

Barometric Setting Box

To set barometric pressure, turn the BARO Knob to select the desired setting.

Altitude Alerting

Within 1000 ft

Within 200 ft

Deviation of ±200 ft

Figure 2-8 Altitude Alerting Visual Annunciations

Visual annunciations appear in the Selected Altitude Box. Whenever the Selected Altitude is changed, the Altitude Alerter is reset. The Altitude Alerter is independent of the Automatic Flight Control System.

An aural tone is heard when the aircraft is within 200 feet of acquiring the selected altitude or when deviating beyond 200 feet of the acquired selected altitude.

Barometric Minimum Descent Altitude

The desired barometric minimum descent altitude (MDA, or Decision Height, DH) can be set in the Timer/ References Window.

Visual annunciations alert the pilot when approaching the MDA:

•When the aircraft altitude descends to within 2500 feet of the MDA setting, the Barometric Minimum Box appears with the altitude in light blue text. The bug appears on the tape in light blue once in range.

•When the aircraft passes through 100 feet of the MDA, the bug and text turn white.

•Once the aircraft descends past the MDA, the bug and text turn yellow and the aural alert, “Minimums Minimums”, is generated.

Alerting is inhibited while the aircraft is on the ground. If the aircraft climbs after having reached the MDA, once it reaches 50 feet above the MDA, alerting is disabled.

2-4

Garmin G1000 Cockpit Reference Guide for the Columbia 350/400

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Garmin Columbia 350/400 manual Altimeter
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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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