thank you for the suggestion dreadnaut that will help. I think there is somone with a vacuum in my area. so far the foam by its self is very light. I havnt got my balsa skins yet, well I havnt got any wood but i will try to make sure it is light. so far i cant see where the plane is heavy. the fuse is alittle heavy but i cant really tell since i dont have a good scale. Anyway thanks.