wave = {
    "Effects/Aircrafts/FW-190D9/Cockpit/Sw10_Down1",
    "Effects/Aircrafts/FW-190D9/Cockpit/Sw10_Down2",
    "Effects/Aircrafts/FW-190D9/Cockpit/Sw10_Down3",
    "Effects/Aircrafts/FW-190D9/Cockpit/Sw10_Down4",
    }
inner_radius = 10
outer_radius = 100
pitch_random = 0.015
gain_random = 0.15
gain = 0.55