Fat Man Replica
NMUSN-5315: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
Nicknamed “Fat Man,” the Mark III was the United States’ first generation nuclear weapon. Developed in the 1940s, this type of bomb was used on the Japanese city of Nagasaki in 1945 and for both tests at Bikini Atoll in 1946. Each bomb produced the equivalent explosive power of 20,000 to 23,000 tons of TNT. In comparison, modern nuclear weapons produce an explosive force equivalent to 475,000 tons of TNT.
This replica was on display in both the National Museum of the U.S. Navy and the Cold War Gallery. The images below detail the move done in October 2023 from the Cold War Gallery to the National Museum of the U.S. Navy.
NMUSN-5316: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5317: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5318: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5319: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5320: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5321: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. Photo shows the replica being moved within main building of the museum. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5322: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. Photo shows the replica being moved within main building of the museum. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5323: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. Photo shows the replica being moved within main building of the museum. National Museum of the U.S. Navy Photograph Collection.
NMUSN-5324: Fat Man replica, October 2023. Fat Man is being moved from the Cold War Gallery to the main building of the National Museum of the U.S. Navy at the Washington Navy Yard, Washington, D.C. Photo shows the replica being moved within main building of the museum. National Museum of the U.S. Navy Photograph Collection.
Images of Fat Man previously on display
NMUSN-791: Weapons Display area, mid-1970s. Area shows the various weapons on display in Bay 10 area, including Fat Man, the 5” gun and from USS Reno (CL-96) (without cover). National Museum of the U.S. Navy Photograph Collection.
NMUSN-2113: Little Boy and Fat Man, 1960s. Replicas of the atomic bombs are shown in the weapons section of the museum. Original is 4 x 5 negative. National Museum of the U.S. Navy Photograph Collection.
NMUSN-2751: Little Boy and Fat Man, 1970s. On display in the weapons area. National Museum of the U.S. Navy Photograph Collection.
NMUSN-3456: Weapons Section, June 26, 1973. Shown: Fat Man and the Betty Bomb, along with the 5” Twin Gun Mount Behind. National Museum of the U.S. Navy Photograph Collection.
NMUSN-4089: Weapons area, 1980s. Little Boy and Fat Man. Original is a negative camera film strip. National Museum of the U.S. Navy Photograph Collection.
