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In August 1945 the US had three (3) atomic bomb weapons.
The test bomb nicknamed "the Gadget" ( a FAT MAN design type) was detonated at the TRINITY test site at Alamogordo Air Base , NM on 16 July 1945 (blast yield of 18.6 kilotons).
Two weapons, code named for the types of bomb's designs and not the weapons themselves, were a LITTLE BOY ( a MARK 1; bomb L-11) uranium U-235 bomb dropped on Hiroshima on 06 Aug 1945 (blast yield of 12-16 kilotons) called Operation: CENTERBOARD I and a FAT MAN (a MARK 3; bomb Y1561) plutonium Pu-239 bomb dropped on Nagasaki on 09 Aug 1945 (blast yield of 20 kilotons) called Operation: CENTERBOARD II. The third bomb also a FAT MAN (MARK 3) intended for Kokura on 19 Aug 1945 Operation: CENTERBOARD III was not used. Niigata and Yokohama were the next two (2) of the 17 (seventeen) targeted Japanese cities not bombed. Tokyo was considered a target city only of last resort since the Emperor, the Supreme War Council, the Prime Minister and Cabinet, and the Imperial Army and Navy General Staffs would have to survive to order an unconditional surrender.
The US had plans to manufacture and assemble one (1) more LITTLE BOY U-235 uranium bomb and up to twelve (12) additional FAT MAN Pu-239 plutonium bombs to drop on the targeted Japanese cities before the invasion of Japan code named Operation: DOWNFALL on 01 Nov 1945, but the surrender of Japan 14 Aug 45 (V-J Day) halted production and assembly of further atomic weapons until the Operation: CROSSROADS tests in June 1946.
Sources:
Pincher - D. A. Rosenberg 1989
Silverplate Bombers - R. H. Campbell 2005
The Decision to Use the Atomic Bomb - G. Alperovitz 1995
Making of the Atomic Bomb - R. Rhodes 1987
The General and the Bomb - W. Lawren 1988
Now It Can Be Told - L. Groves 1983
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Why did they stop using atomic bombs?
If you are referring to WW2, then the US stopped using atomic bombs on Japan because Japan agreed to surrender. Had they not, the US had plans and production setup to drop a total of 23 atomic bombs on Japan in 1945.
What times did japan use their atomic bombs?
Japan has never had atomic weapons. There were two atomic weapons used against Japan by the US in August 1945. Please do some reading.
How many times has an atomic bomb been dropped?
The US dropped 50 atomic bombs from airplanes between 1945 and 1962 (2 in combat on Japan, 48 in test shots). Over 1000 were detonated in other ways in test shots between 1945 and 1992. The USSR, UK, and France also dropped atomic bombs from airplanes and detonated many in other ways in test shots (but never used any in combat).
What were the two cities that the US dropped atomic bombs on?
The U.S. droped Atomic Bombs on the cities of Hiroshima and Nagasaki in Japan.
Which Allied leader ordered the dropping of the atomic bombs?
Harry Truman authorized the use of atomic bombs against Japan.
Where did the us drop atomic bombs?
The US has dropped atomic bombs in 1945 on two Japanese cities, Hiroshima and Nagasaki.
What year did they make the atomic bomb?
The US made atomic bombs from 1945 to 1992.
When was US atomic bombs dropped?
August 6 and 9 1945.
Where did the US drop an atomic bomb in 1944?
Noplace, the US did not have any atomic bombs in 1944. Nobody had atomic bombs in 1944.
When did the US drop two atomic bombs on japan?
On August 6th 1945 and August 9th 1945
What cities in Japan did the US drop the atomic bombs?
The cities were called Hiroshima and Nagasaki. The US dropped the atomic bombs onto Japan on August 6th and 9th 1945.
Why did they stop using atomic bombs?
If you are referring to WW2, then the US stopped using atomic bombs on Japan because Japan agreed to surrender. Had they not, the US had plans and production setup to drop a total of 23 atomic bombs on Japan in 1945.
When did the US drop the atomic bombs on the Japanses cities of Hiroshima and Nagasaki?
August 1945
How long did it take to make all three atomic bombs?
As of august 1945 the US had the industrial capacity to make 3 atomic bombs a month. In november 1945 this would increase to 7 atomic bombs a month. As Japan surrendered before this, the US scaled back production and had only made 9 atomic bombs by the end of Operation Crossroads in the summer of 1946, five of which had been detonated.
Where and when did the US use its atomic bombs?
The US has used atomic weapons in war twice, August 1945, Hiroshima Japan and Nagasaki Japan.
On which country did America drop atomic bombs?
In the space of three days in August 1945, the US dropped atomic bombs on two cities in Japan - Nagasaki and Hiroshima.
When did US drop atomic bombs World War 2?
August 6 & 9, 1945.
