Abstract: An explosive planar shock wave generator produces a planar wave that trav down a shape charge cone to give amplified force on the jet. In all embodiments radial waves are converted to planar waves which react with an explosive shape charge. A planar wave shaper is comprised of a conically shaped planar charge having a predetermined diameter at the base and slant heights terminating at an apex. A cylindrically shaped fast detonating charge which is positioned above the cone shaped planar charge is detonated by a detonator positioned on the surface of the cylindrically shaped fast detonating charge. A sloweer cone shaped detonating shape charge intersecting along the base of the conically shaped planar charge receive the planar shock wave as transformed by the conically shaped planar charge.