"It appears that two weapons targeted on a silo must arrive at least 10 s apart to avoid fratricidal fireball effects, and less than 1 min or more than 1 h apart to avoid fratricidal nuclear dust cloud effects."
Anyone for Missile Defense with a 50-100Mt Tsar bomba?
A primary reason for the generally larger, and in some cases, insanely large throw-weights of Soviet nuclear missiles was their much less accurate targeting and guidance systems.
If you can land a nuke, or even a conventional warhead, directly on whatever it is you're trying to make a was, your required explosive yield falls dramatically.
Blast radius and damage increases with the cube of yield, so if you're half as accurate, you need 8x the blast, generally, for effective damage.
Turns out that with extremely high precision warhead delivery, the US can dispense with nuclear weapons even for tasks such as destroying deeply buried and reinforced bunkers (command and control, or missile launch).
On the one hand this makes nuclear Armageddon that much less likely. On the other it makes use of highly advanced weaponry less objectionable.
Which way the risk needle ultimately swings given that calculus is an interesting question.
"It appears that two weapons targeted on a silo must arrive at least 10 s apart to avoid fratricidal fireball effects, and less than 1 min or more than 1 h apart to avoid fratricidal nuclear dust cloud effects."
Anyone for Missile Defense with a 50-100Mt Tsar bomba?