In the early 80s 1RR in Bluff, Durban would sometimes entertain a local high school by demonstrating various explosives down on the beach. An envelope containing a sheet of plastic explosive would be used to destroy a desk and a length of Cordtex in the sand would be detonated.
Sometimes an RPG-7 would be fired out over the sea. If it does not hit a target after ~920m it explodes and one would see a brilliant white flash and then hear the boom from the explosion. Pity that never happened at my high school.![]()
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