public void AddThruster(SGT_Thruster thruster)
    {
        if (thrusters == null)
        {
            thrusters = new ThrusterList();
        }

        thrusters.Add(thruster);
    }
 public void RemoveThruster(SGT_Thruster thruster)
 {
     SGT_ArrayHelper.Remove(thrusters, thruster);
 }