Filters All Outta Kilter

programming flash
1

Im adding MovieClips to a MovieClip, then I try to add glow filters so that finally my doc can add the parent to the stage.

Here is the code from the MovieClip , everything gets added but I get no filters

package
{
    import flash.display.MovieClip;
    //import flash.filters.BitmapFilter;
    //import flash.filters.BitmapFilterQuality;
    import flash.filters.GlowFilter;
    
    public class RedBox  extends MovieClip
    {
        var thrust1:Thrust =  new Thrust;
        var navLight:NavLight = new NavLight;
        public var glowFilter:GlowFilter=new GlowFilter(0x3609ee,0.5, 32, 32, 32, 1,false, false);
        
        public function RedBox():void
        {
            
            thrust1.x=-38;
            thrust1.y=55;
            thrust1.alpha=0;
            navLight.y=0;
            //glowFilter.color=0x3609ee;
            //glowFilter.blurX=100;
            //glowFilter.blurY=100;
            //glowFilter.quality=3;
            addChildAt(thrust1,0);
            addChildAt(navLight,1);
            navLight.filters[glowFilter];
            thrust1.filters[glowFilter];
        }
    }
}

what do you think?