
<section id='BaseOps_AttackRunChunk_id'
webfilename='attackrunchunk'>
    <title>
        Editing Attack Runs
    </title>
    <para>
        An <italic>attack run</italic> describes the operational characteristics
        of an aircraft engaging in airborne gunnery operations directed
        against a ground target.
    </para>
    <para>
        Attack runs are used by the AGM noise model. Unless that model
        is selected, the parts of the BaseOps user interface dealing with
        attack runs will be hidden. See <iref
        target='BaseOps_NoiseModelsUsed_id'/>.
    </para>
    <para>
        To work with attack runs, choose Attack Runs from the <link
        target='#BaseOps_ListPane_id'>object type selector dropdown list</link>.
        Attack runs can be added, duplicated, and deleted as described
        in <iref target='BaseOps_ListPane_id'/>.
    </para>
    <para>
        To edit an attack run, first select it in the <link
        target='#BaseOps_ListPane_id'>object list</link>, then edit it
        in the <link target='#WCF_ApplicationMainWindow_id'>text pane</link>.
        Attack runs have numerous properties. These are listed below,
        grouped for easy reference.
    </para>
    <section>
        <title>
            Attack Run Name and Notes
        </title>
        <exhibit>
            <img src='BaseOps_AttackRunChunk_NameAndNotes_ScreenCap.png'/>
        </exhibit>
        <unorderedlist>
            [-include "BaseOps_NameLongNameNotes_ListItems.rxl" ObjectTypeName='attack run'-]
        </unorderedlist>
    </section>
    <section>
        <title>
            Target Information
        </title>
        <exhibit>
            <img
            src='BaseOps_AttackRunChunk_TargetInformation_ScreenCap.png'/>
        </exhibit>
        <para>
            <italic>Target</italic> - The target associated with the attack
            run. This defines the point at which airborne gunnery fire is
            directed.
        </para>
        <para>
            Select the target from the dropdown list. Press the Add button
            <img src='intres:WCF_AddPlusSignToolbarButtonBitmap'/> to add
            a new target. Press the Go To button <img
            src='intres:BaseOps_GotoToolbarButtonBitmap'/> to edit the selected
            target.
        </para>
        <para>
            See <iref target='BaseOps_PointObjectChunks_id'/> for more information
            on defining and editing targets.
        </para>
    </section>
    <section>
        <title>
            Aircraft and Munition Information
        </title>
        <exhibit>
            <img
            src='BaseOps_AttackRunChunk_AircraftAndMunition_ScreenCap.png'/>
        </exhibit>
        <unorderedlist>
            <listitem>
                <para>
                    <italic>Aircraft</italic> - The aircraft being used for this attack
                    run.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Munition</italic> - The munition being fired at the target.The
                    available munitions will depend on the selected aircraft.
                </para>
                <para>
                    Once the munition has been selected, the name of the associated
                    AGM noise source file will be shown. Source files contain the
                    measured or estimated spectral noise data for a munition. The
                    files are located in the <filetext>AGM\Sources</filetext> directory.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Expenditure</italic> - The annual number of munition rounds
                    fired. The number of daily rounds fired is calculated by dividing
                    the annual expenditure by 365.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Split</italic> - The percentage split of rounds fired
                    during the day, evening, and night periods. Specify the percentages
                    for the evening and night periods. The day period percentage will
                    then be calculated so that the values sum to 100%.
                </para>
                <para>
                    Note that day, evening, and night are precisely defined periods:
                    see <iref target='BaseOps_CaseChunk_Operations_id'/>. The evening
                    split will be displayed only if the number of daily periods is
                    set to three for this BaseOps case.
                </para>
            </listitem>
        </unorderedlist>
    </section>
    <section>
        <title>
            Firing Volume Information
        </title>
        <para>
            The firing volume is a 3-dimensional shape associated with an
            attack run that encloses all locations where the weapon might
            potentially be fired at the target. The firing volume is defined
            by the following properties.
        </para>
        <exhibit>
            <img src='BaseOps_AttackRunChunk_FiringVolume_ScreenCap.png'/>
        </exhibit>
        <unorderedlist>
            <listitem>
                <para>
                    <italic>Heading</italic> - The attack vector: i.e., the magnetic
                    heading of the nominal center vector of the firing volume.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Left Offset<linebreak/>
                     Right Offset</italic> - The vectors defining the left and right
                    sides of the firing volume, specified as angular offsets from
                    the attack vector.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Nominal Range to Target</italic> - The nominal center
                    point of the firing volume, measured horizontally from the target.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Start Fire Range to Target<linebreak/>
                     Cease Fire Range to Target</italic> - The horizontal distances
                    from the target at which the aircraft starts and stops firing
                    its weapon. These distances define arcs, centered on the target,
                    that form the front and back sides of the firing volume.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Minimum Firing Height<linebreak/>
                     Maximum Firing Height</italic> - The minimum and maximum heights
                    of the firing volume, measured with respect to the target.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Minimum Firing Angle<linebreak/>
                     Maximum Firing Angle</italic> - Bounds on the munition firing
                    angle, measured as angular depressions from horizontal. A firing
                    angle of zero would be towards the horizon, while an angle of
                    90 would be straight down. The firing angle bounds act as additional
                    constraints on the firing volume.
                </para>
            </listitem>
            <listitem>
                <para>
                    <italic>Sigma</italic> - The sigma parameter controls the probabilistic
                    distribution of munition firing points within the firing volume.
                    A sigma of 10 would result in the firing points being clustered
                    near the nominal center of the firing volume. A sigma of 0.01
                    would result in the firing points being (almost) equally distributed
                    throughout the volume.
                </para>
            </listitem>
        </unorderedlist>
    </section>
</section>
