Fairchild Republic Warthogs, three A-10 Thunderbolt II at the California Capital Airshow.
The Warthog was designed to provide close air support for ground forces. Basically it's a tank buster. The aircraft's most powerful weapon is a nineteen foot long 30mm canon that is capable of firing up to 4-thousand rounds per minute. Each round is eleven inches long, weighs more than one-point-five pounds and is capable of ripping right through a tank.
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