Ammunition unit with adaptive impact fuze

An ammunition unit including an adaptive impact fuse for sensing the hardness of a target and, on the basis of the sensed hardness triggering a burst inside, at or outside the target, said impact means, including:

• a first sensing means for sensing soft targets including a first outer cone having a conductive inner surface and a first inner cone surrounded by said first outer cone and having a conductive outer surface, said conductive inner surface of said first outer cone and said conductive outer surface of said first inner cone being adapted to come in contact with each other upon impact of said ammunition unit against said soft targets due to deformation or displacement of said first outer cone towards said inner cone;
• and
• a second impact sensing means for sensing hard targets including a second inner cone having a conductive outer surface and said first inner cone having also a conductive inner surface and surrounding said second inner cone, said first inner cone being deformable or displaceable towards said second inner cone with said conductive surfaces coming into contact with each other upon impact against said hard targets, but not upon impact against said soft targets, said first and second impact sensing means being connected to at least on signal-processing circuit, wherein a first activating signal generated by said first impact sensing means for sensing said soft targets causes a delayed activation of means for effecting triggering of the explosive load of the ammunition unit and a second activating signal generated by said second sensing means for activation by said hard targets causes an instantaneous triggering of said explosive load.