RAINBOW recovered two examples of this weapon from a secret manufacturing facility in Siberia. The bomb is a typical implosion device consisting of a sub-critical mass of plutonium surrounded by a spherical high-explosive jacket. Weight of the device is kept to a minimum by the omission of the uranium damper, which consequentially reduces the device's yield. Computer analysis suggests the destructive capability of the device if detonated would be in the two to five kiloton range - small compared to modern strategic weapons, which typically are in the megaton range, but large enough to achieve nearly 100% mortality within a 1-mile radius of the hypocenter.
