Garmin Bell 407 GTN User Manual

Also see for GTN 725: Maintenance manual Maintenance manual Maintenance manual Activation Instructions User manual

Contents

Garmin Bell 407 GTN User Manual Manual pdf 16 page image

190-01007-J4 Rev. 1 RFMS, Bell 407 GTN GPS/SBAS SystemPage 16 of 22display screen, then pressing the “Telephone” button, and then turning off eachparticipant. Telephone volume settings control both the in call volume as wellas the ringer volume.The GMA 35 can operate in split mode which allows the pilot to communicateon one COM while the co-pilot simultaneously communicates on a secondCOM. When split mode is activated intercom distribution between pilot, copilotand passengers is turned off. Upon exiting split mode intercom distribution isrestored to the settings active prior to entering split mode.TERRAIN PROXIMITYTerrain Proximity refers to the display of terrain information and comprises of a2-D picture of the surrounding terrain and obstacles relative to the position andaltitude of the rotorcraft, however it does not provide any alerts.Relative terrain elevation is depicted using a five color scale in which terrainthat is at or above the helicopter’s current altitude is depicted in orange and redwhile terrain within 250 feet of the helicopter’s current altitude is shown inyellow.Obstacles are depicted using a three color scale in which obstacles whose top isat or above the helicopter’s current altitude are shown in red while obstacleswithin 250 feet of the helicopter’s current altitude are shown in yellow.The terrain page scale depicts the terrain scale but does not depict the obstaclescale.NOTETerrain Proximity and HTAWS are separate features. If “HTAWS”is shown on the bottom right of the dedicated terrain page, thenHTAWS is installed.HTAWSThe GTN can include an optional Helicopter Terrain Awareness and WarningSystem (HTAWS) which includes visual depictions of terrain and obstaclesrelative to helicopter altitude as well as visual and aural alerts if terrain orobstacles are a threat to the safe flight of the helicopter. This installation includes Terrain Proximity. No aural or visual alerts forterrain or obstacles are provided. This installation includes HTAWS. Aural and visual alerts will be provided.HTAWS is an alerting system. The system does NOT guarantee successfulrecovery from a conflict due to factors such as pilot response, aircraftperformance, and database limitations. No standardized recovery technique isdefined as recovery maneuvers may vary. HTAWS protection is provided atgroundspeeds above 30 knots.