April 1955 a test was conducted using a Mk7 warhead using an experimental composite plutonium/uranium-233 pit, producing a 22kt yield, 33% lower than expected. As Shot MET was a military effects test the lower yield ruined many of the experiments being conducted by the DoD during the test. The DoD had not been informed of the substitution by Los Alamos. T2 Atomic Demolition Munition An Atomic Demolition Munition (ADM) called the T2 was considered starting in February 1953. Some work on the project was completed but the device was cancelled before production. The system was to have both command and timer detonation options. Survivors A Mark 7 casing is on display in the Cold War hangar at the National Museum of the United States Air Force in Dayton, Ohio. Specifications Length: Diameter: Weight: Fuzing: airburst or contact Yield: Yield could be varied between by using different weapon pits (cores). Implosion nuclear weapon Users English Electric Canberra (Royal Air Force) Douglas F3D-2B Skyknight Douglas A-1 Skyraider Douglas A-3 Skywarrior Douglas A-4 Skyhawk Martin B-57 Canberra McDonnell F2H Banshee McDonnell F3H Demon McDonnell F-101 Voodoo North American FJ Fury North American B-45 Tornado North American F-100 Super Sabre Republic F-84 Thunderjet See also RDS-4 List of nuclear weapons References External links SAC: Nuclear Weapons Mark 07 Nuclear bombs of the United States Military equipment introduced in the 1950s