Cold War United States Earth Penetrating Nuclear Warheads

[World B4]

The W61 was intended for deployment on the ACM and Midgetman, but was cancelled in 1992
https://en.wikipedia.org/wiki/B61_nuclear_bomb#W61_Earth_Penetrator_WarheadThe W86 was intended for deployment on the Perishing II, and was cancelled in 1980. For imagery, probably similar to the DF-13C
https://en.wikipedia.org/wiki/W86The W8 was intended for deployment on the Regulus. It was cancelled in 1955
https://en-academic.com/dic.nsf/enwiki/2341823

 

[NMaude]

The Midgetman was supposed to also use the W87-1 too.

 

[World B4]

The Midgetman was supposed to also use the W87-1 too.

Most missiles had primary warheads, but it would seem a capability to destroy hardened targets was always desired