Honeywell

MK XXII EGPWS Installation Manual

For Helicopters TA&D Alternate Pop Up should always be set to False.

3.3.7.4 Peaks Mode

Peaks mode is an alternate means of displaying terrain data. The standard terrain display mode displays terrain relative to the aircraft altitude that is within the aircraft envelope (the terrain is above or not more than 2000 feet below the aircraft). The terrain display is typically blank during the cruise portion of a flight. Peaks mode provides increased situational awareness by providing the same information as the standard display mode as well as displaying terrain outside of the aircraft envelope and the highest and lowest elevations of terrain displayed. Peaks mode displays terrain based on the absolute terrain elevations.

Disabling peaks mode is not an option in the Mk XXII. Peaks Mode is always selected.

3.3.7.5 Obstacle Awareness

The Obstacle Awareness feature adds a database of (man-made) obstacles that are greater than 100 feet taller than the surrounding terrain to the Terrain Awareness Alerting calculations. (The Terrain Awareness Alerting feature continuously computes terrain clearance envelopes ahead of the aircraft and issues alerts if the boundaries of these envelopes conflict with terrain elevation data in the terrain database.) Obstacle data is currently available for North America and parts of the Caribbean. Not all obstacles will be contained in the database.

Category 7 enables Obstacle Awareness if TA&D is not disabled in Category 6.

Note: TAD must be enabled if Obstacle Awareness is enabled.

Honeywell strongly recommends the selection of Obstacle Awarness.

3.3.7.6 Bank Angle Callout Enabling

The Bank Angle feature provides protection for over banking during maneuvering on approach or climb-out and while at altitude.. The Bank Angle callout can be enabled or disabled as appropriate for this installation.

CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225

REV: C SHEET 82

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Honeywell MKXXII installation manual Peaks Mode, Obstacle Awareness, Bank Angle Callout Enabling