
<section id='BaseOps_InstallInstructions_RNM_id'>
    <title>
        Installing the Optional RNM Model
    </title>
    <note type='important'>
        <para>
            RNM is being replaced by the AAM. If you are starting a new project,
            it is recommended that you use AAM. RNM is still being supported
            primarily for existing legacy noise cases.
        </para>
    </note>
    <para>
        The Rotorcraft Noise Model (RNM) is not included with the standard
        Noisemap installation package. If you wish to perform a noise
        analysis using RNM aircraft, you must first install RNM. Simply
        follow the installation instructions included with the RNM distribution
        package, noting these points:
    </para>
    <unorderedlist>
        <listitem>
            <para>
                To work with BaseOps, RNM must be installed in the <filetext>RNM</filetext>
                subdirectory of the <filetext>Noisemap</filetext> directory. All
                RNM files --- including the <filetext>.exe</filetext> files, the
                <filetext>.dll</filetext> files, and the <filetext>.nc</filetext>
                files --- should be present in the <filetext>Noisemap\RNM</filetext>
                directory.
            </para>
            <para>
                If you have already installed RNM in another location, move the
                RNM files to this directory and update your computer's <fixedtext>PATH</fixedtext>
                and <fixedtext>ROTOR_NOISE</fixedtext> environmental variables
                to reflect RNM's new location (see RNM documentation).
            </para>
        </listitem>
        <listitem>
            <para>
                The file "<filetext>Noisemap\RNM\RNM&nbsp;Aircraft.txt</filetext>"
                must contain a list of all RNM aircraft. If you add hemisphere
                (<filetext>*.nc</filetext>) files to RNM, you must edit this file.
                See the comments at the top of "<filetext>RNM&nbsp;Aircraft.txt</filetext>"
                for more details.
            </para>
        </listitem>
    </unorderedlist>
    <para>
        As of April 2019, RNM can be requested via the following website:
    </para>
    <para>
         <link target='https://software.nasa.gov/software/LAR-17753-1'>https://software.nasa.gov/software/LAR-17753-1</link>
    </para>
</section>
