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Wasmer Consulting BaseOps User's Guide Editing Military Operations Areas
A military operations area (MOA) is a region of airspace where aircraft engage in dispersed operations. Vertically, MOAs are defined by floor and ceiling altitudes. Horizontally, they are defined by a polygon consisting of three or more geographic points.
MOAs are used by the MRNMap noise model. Unless that model is selected, the parts of the BaseOps user interface dealing with MOAs will be hidden. See Noise Models.
BaseOps can import MOAs from DAFIF. See Importing Information from DAFIF.
MOAs have the following properties.
Name - A short (10 characters maximum) name that uniquely and unambiguously identifies the MOA.
Long Name - A one-line (80 characters maximum) name for the MOA. The long name can be more descriptive than the short name. It is optional: if you do not supply a long name, the short name will be used in its place when necessary.
Notes - Miscellaneous information about the MOA. There is no restriction on the length of notes. Press the Enter key to insert additional lines.
Ceiling - The minimum and maximum flight levels for this MOA. Type the height, then select whether the height is above ground level (AGL) or above mean sea level (MSL).
You can change the units used to specify heights: see Setting the Case's Physical Units.
Area - The area within the MOA's boundary. The area is automatically updated as you edit the MOA.
You can change the units used to specify the area: see Setting the Case's Physical Units.
Points - The geographic coordinates of the vertex points of the polygon that defines the MOA's horizontal boundary. The points are presented in a table.
A minimum of three points must be defined. The polygon must have non-zero area, and the sides must not cross each other. The polygon's vertex points can be defined in either the clockwise or the counterclockwise direction.
You can change the coordinate system used to specify the points: see Setting the Case Coordinate System.
The triangle icon indicates the selected point. To select another point, either click somewhere on that point's row, or navigate to that point using the Tab key. Alternatively, click on that point on the map using the Select and Edit mouse tool .
To add a new point, either press the Add New Point button , or press Ctrl + A. Alternatively, use the Add mouse tool to add new points by clicking on the map. New points are added to the polygon boundary after the selected point.
When editing MOAs on the map, you will often find yourself switching back and forth between using the Select and Edit and the Add mouse tools. As a convenience in such situations, hold down the Ctrl key to make the Add mouse tool temporarily act like the Select and Edit mouse tool, and vice versa.
To delete the selected point, either press the Delete Point button , or press Ctrl + Del.
To move the selected point up or down in the table, press the Move Up and Move Down buttons and , or press Ctrl + U and Ctrl + D.
When you are editing a MOA, BaseOps marks the vertex points on the map. This makes it easier to edit the MOA using the mouse tools.
The upper-left point, highlighted in yellow, is the selected point.
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