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Originally Posted by Abraham
Very interesting, Pigfish.
It seems incredible for a bomb to penetrate up to 70 m. of concrete or 300 meters of land, given the 7 m./30 m. maximum of the current blockbuster generation. But even a two fold increase would be sensational: penetration of 14 meters of concrete or 60 meters of earth. Go figure!
Abraham
(with party cap on)
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Well, that has been done with artillery projectiles:
http://www.aopt91.dsl.pipex.com/rail...ra%20index.htm
Look at the bottom for penetration in concrete.