Background: A good knife to have with you in the woods or combat gets heavy because of the weight of the metal in the blade. To remedy that the majority of the metal in the blade and shank should be of aircraft aluminum. The edge would be of the same type of metal that holds a sharp edge on good knives today.
Floating Knife: There are very few knives that can be made to float. This would be one of them. The reason being that the buoyancy of the handle would be able to keep the mass of the bi-metal fixed blade afloat.
Copyright 2012 Thomas Paul Murphy