Mars Bluff, South Carolina
Encyclopedia
Unincorporated area
In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...
in Florence County
Florence County, South Carolina
Florence is a county located in the U.S. state of South Carolina. In 2000, its population was recorded to be 125,761; in 2005, the U.S. Census Bureau estimated that its population had reached 131,097. Its county seat is Florence. The county's population is about 60% urban and it comprises part of...
, South Carolina
South Carolina
South Carolina is a state in the Deep South of the United States that borders Georgia to the south, North Carolina to the north, and the Atlantic Ocean to the east. Originally part of the Province of Carolina, the Province of South Carolina was one of the 13 colonies that declared independence...
, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
that bears the distinction of having been inadvertently bombed with a nuclear weapon by the United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
.
On March 11, 1958 a U.S. Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
B-47 Stratojet
B-47 Stratojet
The Boeing Model 450 B-47 Stratojet was a long-range, six-engined, jet-powered medium bomber built to fly at high subsonic speeds and at high altitudes. It was primarily designed to drop nuclear bombs on the Soviet Union...
from the Hunter Air Force Base's 308th Bombardment Wing in Savannah
Savannah, Georgia
Savannah is the largest city and the county seat of Chatham County, in the U.S. state of Georgia. Established in 1733, the city of Savannah was the colonial capital of the Province of Georgia and later the first state capital of Georgia. Today Savannah is an industrial center and an important...
, Georgia
Georgia (U.S. state)
Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
took off around 4:34 p.m. It was scheduled to fly to the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
for Operation Snow Flurry. The plane was required to carry nuclear weapons in the event of war breaking out with the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
. Air Force Captain Bruce Kulka was the navigator
Flight officer
The title flight officer was a military rank used by the United States Armed Forces where it was an air force warrant officer rank. It was also an air force rank in several Commonwealth nations where it was used for female officers and was equivalent to the rank of flight lieutenant...
and was summoned to the bomb bay area after the captain of the plane had encountered a fault light in the cockpit indicating that the bomb harness locking pin for the transatlantic flight did not engage. As Kulka was reaching around the bomb to pull himself up, he mistakenly grabbed the emergency release pin. The Mark 6 bomb
Mark 6 nuclear bomb
The Mark 6 nuclear bomb was an American nuclear bomb based on the earlier Mark 4 nuclear bomb and its predecessor, the Mark 3 Fat Man nuclear bomb design.The Mark 6 was produced from 1951-1955 and saw service until 1962...
dropped to the floor of the B-47 and the weight forced the bomb bay doors open sending the bomb 15000 feet (4,572 m) down to the ground below.
Although the bomb did not contain the removable core of fissionable uranium and plutonium (the core was securely stored in a containment area onboard the plane and thus not technically a traditional "atomic" bomb per se.), it did contain 7600 pounds (3,447 kg) of conventional explosives. The resulting explosion created a mushroom cloud and crater estimated to be 75 feet (23 m) wide and 25–35 feet (7.6–10.7 m) deep. It destroyed a local home, the residence of Walter Gregg, and leveled nearby trees. Nobody was directly killed from the blast but several people in Gregg's family were injured from the explosion.
The crater is still preserved, but obscured by a swamp.