why the bombs dropped at Hirosima and Nagasaki were called little boy and fat man?

Question

Why the bombs are called 'Little Boy' and 'Fat Man'.

Answer 1

Two bombs, two code names (one for each bomb.)

Answer 2

Little Boy was a U-235 gun type bomb, they had done so many experiments with U-235 before the drop that it was never tested before being dropped on Hiroshima. Because plutonium fissioned so rapidly, the Fat Man bomb design was tested at Trinity, it used a sophisticated implosion lens assembly of the subcritical shells of the plutonium core, and only then was it used in combat over Nagasaki.

Answer 3

Those were just code names so the bombs could be mentioned in communications without saying "Atomic bomb number 1 is on the way".

Each of the two bombs was a different design, which is part of the reason for two different codes for each bomb.

Answer 4

The name 'Little Boy' is alleged to be a reference to former President Roosevelt. 'Fat Man' was allegedly named after Winston Churchill.

Answer 5

Treacle shoots and scores - - - nicknamed after Churchill and though no one ever called FDR Little Boy in the spirit of the US Airforce it seemed to fit but obviouslly Fat Man was more of a fit for the bulbuous Plutonium bomb dropped on Nagasaki.....


Peace.................................c...............................c..............

Answer 6

they were TWO different types of atomic bombs
hence, two separate names