BLU-14

The BLU-14/B was an American 347 kg ground-penetrating anti-vehicle mine for release by Low flying [military training|low-flying] aircraft. It was a derivative of the MLU-10/B land mine, and therefore essentially identical in shape and weight to the BLU-31/B anti-vehicle demolition mine and bomb. The designation "BLU" stands for Bomb Live Unit, as opposed to "BDU" used for practice.
The BLU-14/B has a low, stable ricochet trajectory that is predictable within close limits. It will penetrate into the ground at an angle that is less than half that required by an M117 bomb. The BLU-14/B and MLU-10/B differ only in regard to their respective fusing.
All three weapons have a blunt flat front end of thickness.