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Airspace Settings (cont.)
The airspace alarms are designed to provide message alerts in several stages, depending on
whether you are projected to enter the airspace or are just in close proximity. The alerts are:
• Airspace Ahead, Less Than 10 minutes — occurs if your projected course will
take you inside an airspace within the next ten minutes.
• Airspace Near and Ahead — is displayed when you are within two nautical miles
of an airspace and your current course will take you inside the airspace.
• Inside Airspace — occurs when you have entered the boundaries of the airspace.
• Near Airspace, Less Than 2 nm — appears when you are within two nautical
miles of an airspace, but your current course will not take you inside the airspace.
NOTE: Some airspace altitude limits may be charted in terms of altitude above ground level
(AGL). If the actual lower limit of an airspace is charted in AGL, the GPS III Pilot will alert you
at any altitude below the upper limit. However, if the actual upper limit is also charted in AGL,
the GPS III Pilot will provide the alert at all altitudes.
Nearest Settings
Runway Surface determines which surface type or types will be included when display-
ing nearest airports on the Nearest Page. Available types include: ‘Any’ (includes water
landing facilities), ‘Hard Only’ surface, ‘Hard or Soft’ surface and ‘Water Only’ facilities.
Min Runway Length determines the minimum allowable runway length when displaying
nearest airports on the Nearest Page.
To select the nearest airport criteria:
1. Highlight the ‘Runway Surface’ or ‘Min Runway Length’ field and press ENTER.
2. For ‘Runway Surface’, select the desired surface type and press ENTER.
3. For ‘Min Runway Length’, enter the minimum allowable runway length and press ENTER.
Due to vertical airspace lim-
its, if you fly above or below
an airspace then descend or
climb into the airspace, the
‘Inside Airspace’ message may
be the only alert provided.
‘Hard Only’ includes only
concrete, asphalt, or similar
sealed surface runways.
85
REFERENCE
Setup: Nearest
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GPS III Pilot B2 4/1/99 2:02 PM Page 85