M117 bomb
The M117 is an air-dropped general-purpose bomb used by United States military forces. It dates back to the time of the Korean War of the early 1950s. Although it has a nominal weight of 750 pounds (340 kg), its actual weight, depending on fuze and retardation options, is around 820 pounds (372 kg). Its explosive content is typically 403 pounds (183 kg) of Minol 2 or Tritonal. It can also be configured with a low-drag tail fin for medium and high-altitude deliveries.
History
In the 1950s through the early 1970s the M117 was a standard aircraft weapon, carried by the F-100 Super Sabre, F-104 Starfighter, F-105 Thunderchief, F-111, and F-4 Phantom.
The M117 series was used extensively during the Vietnam War, and B-52G Stratofortress aircraft dropped 44,600 M117 and M117R bombs during Operation Desert Storm.
At present it is used only by the B-52 Stratofortress, tactical aircraft now tend to use the Mark 80-series bombs in particularly the Mark 82 (500 pounds (227 kg)) or Mark 84 (2,000 pounds (907 kg)) bombs and their guided equivalents.