The A-10 Thunderbolt, known by the knickname "Warthog" due to its ugly appearance, has been used for several decades in what is known as "close air support", including the operations in Afghanistan and Iraq. It can carry a variety of missiles and bombs, but is mainly noted for its 30-millimeter machine gun. Among military planes, the A-10 is one of the slowest used in combat, flying at around 400 miles per hour. Because it is slow (for an airplane), ugly and powerful, I like call it the "offensive lineman" of military aircraft. The A-10 has recently been targeted for being discontinued, but some people in the military and Congress have expressed a desire to keep it in our arsenal.
Read the story at The Washington Post.