<?xml version="1.0"?>

<PropertyList>
    <fx>

        <rotor>
            <name>rotor</name>
            <reference-dist>150</reference-dist>
            <max-dist>1000</max-dist>
            <mode>looped</mode>
            <path>Aircraft/ch47/Sounds/rotor.wav</path>
            <condition>
                <and>
                    <greater-than>
                        <property>rotors/main/rpm</property>
                        <value>10</value>
                    </greater-than>
                    <not>
                        <property>sim/crashed</property>
                    </not>
                </and>
            </condition>
            <volume>
                <property>rotors/main/rpm</property>
                <factor>0.004</factor>
                <max>1.2</max>
            </volume>
            <volume>
                <property>sim/sound/Ovolume</property>
            </volume>
            <pitch>
                <property>rotors/main/rpm</property>
                <factor>0.0044</factor>
                <offset>0</offset>
                <max>1.0</max>
            </pitch>
        </rotor>

        <contact>
            <name>ground contact</name>
            <mode>once</mode>
            <reference-dist>5</reference-dist>
            <max-dist>10</max-dist>
            <path>Sounds/helicopter-skid.wav</path>
            <condition>
                <property>gear/gear[0]/wow</property>
            </condition>
            <volume>
                <factor>0.8</factor>
            </volume>
            <pitch>
                <factor>0.01</factor>
            </pitch>
        </contact>

        <contact>
            <name>ground contact</name>
            <mode>once</mode>
            <reference-dist>5</reference-dist>
            <max-dist>10</max-dist>
            <path>Sounds/helicopter-skid.wav</path>
            <condition>
                <property>gear/gear[1]/wow</property>
            </condition>
            <volume>
                <factor>0.8</factor>
            </volume>
            <pitch>
                <factor>0.01</factor>
            </pitch>
        </contact>

        <contact>
            <name>ground contact</name>
            <mode>once</mode>
            <reference-dist>5</reference-dist>
            <max-dist>10</max-dist>
            <path>Sounds/helicopter-skid.wav</path>
            <condition>
                <property>gear/gear[2]/wow</property>
            </condition>
            <volume>
                <factor>0.8</factor>
            </volume>
            <pitch>
                <factor>0.01</factor>
            </pitch>
        </contact>

        <contact>
            <name>ground contact</name>
            <mode>once</mode>
            <reference-dist>5</reference-dist>
            <max-dist>10</max-dist>
            <path>Sounds/helicopter-skid.wav</path>
            <condition>
                <property>gear/gear[3]/wow</property>
            </condition>
            <volume>
                <factor>0.8</factor>
            </volume>
            <pitch>
                <factor>0.01</factor>
            </pitch>
        </contact>

        <wind>
            <name>wind</name>
            <mode>looped</mode>
            <reference-dist>2</reference-dist>
            <max-dist>5</max-dist>
            <path>Sounds/wind.wav</path>
            <condition>
                <and>
                    <property>velocities/airspeed-kt</property>
                    <not>
                        <property>sim/crashed</property>
                    </not>
                </and>
            </condition>
            <volume>
                <property>position/altitude-ft</property>
                <factor>-0.000015</factor>
                <offset>1.0</offset>
                <min>0.1</min>
                <max>1.0</max>
            </volume>
            <volume>
                <property>velocities/airspeed-kt</property>
                <factor>0.0015</factor>
                <min>0.03</min>
                <max>0.25</max>
            </volume>
            <pitch>
                <property>velocities/airspeed-kt</property>
                <factor>0.01</factor>
                <offset>1.25</offset>
            </pitch>
        </wind>

        <crash>
            <name>intense ground contact</name>
            <mode>once</mode>
            <reference-dist>500</reference-dist>
            <max-dist>1000</max-dist>
            <path>Sounds/crash.wav</path>
            <property>sim/crashed</property>
            <volume>
                <factor>1</factor>
            </volume>
            <pitch>
                <factor>0.1</factor>
            </pitch>
        </crash>
    </fx>
</PropertyList>
