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No and yes. Lets look at a timeline.

  1. 1952, US detonates first hydrogen bomb: Ivy Mike. This device is 6.67 feet (2.03 m) in diameter and 20.33 feet (6.19 m) in height and weighed about 54 tons used a mixture of liquid deuterium and tritium as fuel and required a cryogenic plant weighing about 28 tons to supply ordinary liquid hydrogen to keep it cold. Obviously this was not a practical weapon that could be carried by airplane, but just a proof of concept test device.
  2. 1953, USSR detonates a deliverable weapon they called "a type of hydrogen bomb": RDS-6 (Joe 4 in the US). The first dry fueled "hydrogen bomb", using alternating layers of uranium-235 and lithium-6 deuteride. Today we would call this a boosted fission atomic bomb, not a hydrogen bomb.
  3. 1954, US detonates several dry hydrogen bombs using lithium-6 deuteride as fuel in Operation Castle. Castle Bravo is the first. Following the success of the Castle Bravo device, a test of a miniaturized version of the Ivy Mike device that could just barely be carried by a B-36 bomber (the largest bomber at the time) was canceled. Castle Romeo is a fully weaponized device designed to be carried by a B-36 bomber, fielded as the EC-17 (EC means emergency capability) that year and with a system of retarding parachutes added (to allow the delivery bomber to escape the blast so the crew can survive) as the MK-17 in early 1955.
  4. 1955, USSR detonates their first hydrogen bomb: RDS-37. It was the first hydrogen bomb tested by airdrop from a bomber.
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Q: Did the soviet union have hydrogen bomb before the us?
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Related questions

What bomb did both US and the soviet union try to invent?

atomic bomb or the hydrogen bomb


Who made the biggest hydrogen bomb?

The former Soviet Union.


What was goal of president Truman in ordering research of the hydrogen bomb?

The goal was to discourage the Soviet Union from attacking free nations.


When did American interests in developing a hydrogen bomb intensify?

By 1953, the United States and the Soviet Union had developed both the atomic bomb and the hydrogen bomb, or H-bomb. So now that that has happened the United States wanted to have more interests in developing a hydrogen bomb and that's how it intensified.


What was a goal of president Truman in ordering research of hydrogen bomb?

The goal was to discourage the Soviet Union from attacking free nations.


What was a goal of President Truman in ordering research of the hydrogen bomb?

The goal was to discourage the Soviet Union from attacking free nations.


What event intensified American interest in developing a hydrogen bomb?

The Soviet Union exploded its first atomic bomb in 1949, President Truman had to make a terrible decision-- whether to develop an even more horrifying weapon- Hydrogen bomb


When did the Soviet Union have nuclear bombs?

The Soviet Union tested their first atomic bomb in 1949.


What was not a major factor in the decision to use the atomic bomb?

sending a warning to the Soviet Union sending a warning to the soviet union


Who owned the h bomb?

the soviet union (ussr)


When the soviet union exploded an atomic bomb, the US responded by intensifying efforts to develop?

They developed the H-bomb, a bomb more powerful than the atomic bomb that the Americans dropped on Japan, and was stronger than the one that the Soviet Union detonated. The U.S. just wanted to be stronger than the Soviet Union.


What made the US and soviet union emerge from the war as superpowers?

the united states had the atomic bomb. The Soviet Union had the world's most powerful army.