During the Charlie shot the test device named "PC" was fired. Predicted yield was in the
12-15kt range. Apparently that was the new weapons research test. To be more precise it was an effort to improve existing
nuclear weapons performance, as well as reduce the costs of the nuclear armament. PC basically was the standard MK-4 bomb,
except the core was Uranium/Plutonium assembly.
Not much data as you can see. If you have something interesting regarding this test please Contact me.