MK-4 Atomic Bomb - Carp, Ontario, Canada - Military Ground Equipment Displays on Waymarking.com

The Mark 4 nuclear bomb was an American nuclear bomb produced in 1949 and in use until 1953.

The Mark 4 was 60 inches (1.5 m) in diameter and 128 inches (3.3 m) long. It weighed slightly more at 10,800 to 10,900 pounds (4,900 to 4,940 kg) depending on the specific Mark 4 version.

Mark 4 models used composite uranium and plutonium fissile pits. Various versions of the Mark 4 had explosive yields of 1, 3.5, 8, 14, 21, 22, and 31 kilotons.

A total of 550 Mark 4 nuclear weapons were produced.


You will find this bomb as soon as you enter the Diefenbunker, WMD4B3, The Museum of Cold War.

Location restrictions: Open to general public Museum Hours: 11:00am – 4:00pm Adults: $14.00 + HST Seniors: $13.00 + HST Students: $10.00 + HST Youth (6-18): $8.00 + HST Family rate (2 adults, 5 youth): $40.00 + HST Children 5 and under are free! Parking is always free!

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