Little Boy ready to drop a year early:

#12
The gun type Little Boy used roughly 65kg if HEU.

Using that with an implosion devuce, the Critical Mass is 25kg.

Oak Ridge did not keep production totals for 1945, but lumped in with 1946, for a total of 571kg of HEU produced, exceeding what Pu Hanford was able to create when all available Reactors were online after October 1944, and the reactors were down for a lot of early teething troubles.

What I'm saying, that had the decision to use HEU in a Fatman style bomb been made, a deployable bomb would have been ready months earlier, maybe in time for use in Germany
 
#13
Why do you assume that Berlin would be a primary target for a nuke? Why not drop the bomb on the Ruhr and destroy German industry? Or, as an alternative drop it on Hitler's headquarters - The Wolf's Lair? It would kill up to 20,000 SS Begleit Kommando and it would be by a miracle that Hitler himself is vaporized.
 
Jul 2016
9,476
USA
#14
Why do you assume that Berlin would be a primary target for a nuke? Why not drop the bomb on the Ruhr and destroy German industry? Or, as an alternative drop it on Hitler's headquarters - The Wolf's Lair? It would kill up to 20,000 SS Begleit Kommando and it would be by a miracle that Hitler himself is vaporized.
Berlin would be a great target because its the seat of the German govt, major communications hub, etc. The Ruhr isn't one place, its a large region encompassing numerous cities. To destroy it would necessitate a dozen bombs at least.
 
Jul 2016
9,476
USA
#15
Honestly, I think that the Allies are going to really enjoy watching Germany descend into anarchy. Also, I could certainly see a stab-in-the-back myth developing in Germany in this scenario--though then again, maybe not, since a surviving Hitler and Nazi leadership is not actually going to be able to do anything about the US's possession of nuclear weapons.

It would be interesting if there would be different occupation lines in post-WWII Germany in this scenario, and, if so, what they would look like. Also, the remaining 67,000 or so Jews of Lodz and all of the Jews of Budapest are going to survive the Holocaust in this scenario.
They can promote their stab in the back myth all they want, they couldnt' do anything about it. Their country would still be forced to surrender unconditionally, it would still be occupied, the Wehrmacht would still fully be abolished, the officer corps would still be tried for war crimes, the junker class would still be effectively destroyed as a military culture, their industry would be full demilitarized, as would their culture for a period of decades.
 
Aug 2015
2,840
Chalfont, Pennsylvania
#17
Berlin would be a great target because its the seat of the German govt, major communications hub, etc. The Ruhr isn't one place, its a large region encompassing numerous cities. To destroy it would necessitate a dozen bombs at least.
Another possible target of the first atomic bomb on Germany would be Zossen about 20 miles south of Berlin. The underground headquarters of the OKW and the OKH (the wehrmacht and the German army) were there. If available bombs could destroy those bunkers, destroying the bureaucratic headquarters of two highly bureaucratic organizations would greatly hinder their ability to function.
 
Oct 2015
1,120
California
#18
Another possible target of the first atomic bomb on Germany would be Zossen about 20 miles south of Berlin. The underground headquarters of the OKW and the OKH (the wehrmacht and the German army) were there. If available bombs could destroy those bunkers, destroying the bureaucratic headquarters of two highly bureaucratic organizations would greatly hinder their ability to function.
Depending on how many nukes it would take to make Germany see the light and surrender unconditionally, how long would these cities remain uninhabitable? Not to mention the long term health damage to the civilian population? Japan, seeing what to expect in a very short time frame, might well try a negotiated surrender to the Kuomintang, rather than suffer a similar fate. The Japanese likely wouldn't be convinced right off. In this TL, the Japanese seeing the total annihilation of Berlin and other German cities might be enough to send the appropriate message.

Speaking of other targets, Nuremberg may not have any military value, but as the mecca of Nazism, it could be an inviting symbolic target for a second bomb.
 
Jul 2016
9,476
USA
#19
Another possible target of the first atomic bomb on Germany would be Zossen about 20 miles south of Berlin. The underground headquarters of the OKW and the OKH (the wehrmacht and the German army) were there. If available bombs could destroy those bunkers, destroying the bureaucratic headquarters of two highly bureaucratic organizations would greatly hinder their ability to function.
They would need subsurface detonation to destroy bunkers, and the early bombs were strong enough for that. The safest detonation, and even all of those weren't guaranteed to detonate, would be an airburst, which would barely touch a deep reinforced concrete bunker, especially with bombs in the ~15 kiloton range.
 
Jul 2016
9,476
USA
#20
Depending on how many nukes it would take to make Germany see the light and surrender unconditionally, how long would these cities remain uninhabitable? Not to mention the long term health damage to the civilian population? Japan, seeing what to expect in a very short time frame, might well try a negotiated surrender to the Kuomintang, rather than suffer a similar fate. The Japanese likely wouldn't be convinced right off. In this TL, the Japanese seeing the total annihilation of Berlin and other German cities might be enough to send the appropriate message.

Speaking of other targets, Nuremberg may not have any military value, but as the mecca of Nazism, it could be an inviting symbolic target for a second bomb.
How long were Hiroshima and Nagasaki uninhabitable for?
 

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