internal void ApplyIncremental(AircraftConfiguration inc)
 {
     if (inc.Lights != null)
     {
         Lights.ApplyIncremental(inc.Lights);
     }
     if (inc.Engines != null)
     {
         Engines.ApplyIncremental(inc.Engines);
     }
     if (inc.GearDown.HasValue)
     {
         GearDown = inc.GearDown.Value;
     }
     if (inc.FlapsPercent.HasValue)
     {
         FlapsPercent = inc.FlapsPercent.Value;
     }
     if (inc.SpoilersDeployed.HasValue)
     {
         SpoilersDeployed = inc.SpoilersDeployed.Value;
     }
     if (inc.OnGround.HasValue)
     {
         OnGround = inc.OnGround.Value;
     }
 }