Creating new instances

1

i just wanted to create a class reference from another class

i have 2 clss where i want to create a instace of class Helicopter in class Engine and then control the helicopter instaces properties from the helicopter class

Engine class

package com.asgamer.helicopter
{

import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;


public class Engine extends MovieClip 
{
    
    public static var heli:Helicopter= new Helicopter();
    public function Engine() : void
    {
        
        this.stage.addChild(heli);
                
    }
    
    
}

}

then helicopter class

package com.asgamer.helicopter{

import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;


public class Helicopter extends MovieClip {
    public var up:Boolean = false;
    public var down:Boolean = false;
    public var left:Boolean = false;
    public var right:Boolean = false;



    public function Helicopter() {
        heli.x=200;
        heli.y=200;
        
    }
}

}