The Mark 82 (Mk82) is a 500lb. nonguided general purpose bomb (a dumb bomb).

MK-82
Primary Function:500-pound free-fall, general purpose bomb - blast and fragmentation
Length:2.21 meters
Diameter:10.75 inches
Range:Varies by method of employment

The Mk82 series was developed in the 1950s, in response to the US Air Force's want of a more aerodynamic bomb. In that way, it is known as an LDGB (Low Drag General Purpose Bomb). It was used to great effect mainly in the Persian Gulf War.

Aircraft

Many aircraft use the Mk82, including: