Let me start by saying that if I get this information wrong, please feel free to explain what I’m trying to describe . I can assure you my friends, my feelings will not be hurt.
As it was told to me, the VC/NVA would collect the 250 lb. bombs that didn’t go off when they hit. They would tie this bomb on a small tree, pull it back, and place a small explosive charge under the tree. When the smaller explosive went off, it would cause the small tree to spring forward with more tension and consequently forcing the bomb in to the air with some power. We would hear the smaller explosion and the bomb cutting through the air. I’m not sure how to spell the sound it would make but if one was ever thrown at you, you know what I mean when I say “cutting through the air”. The worst of it all, you didn’t know what to do (‘to sh– or get’)! Anything that big doesn’t have to land on top of you to “put your health records in to the red”. The upside to all of this, believe it or not, is that the bomb still had to hit on it’s head in order to detonate. Still, I don’t know too many guys who didn’t need to go to the head after going through something like that.