There is a space craft fueled by exploding nuclear bombs, drawn from the 1960's studies. It's called Orion and is available here: [ame="http://www.orbithangar.com/searchid.php?ID=838"]Orion 1.2[/ame]
http://orbithangar.com/searchid.php?ID=714 (Minuteman II)
This is to my knowledge the only one fully working nuclear weapon addon
[ame="http://www.orbithangar.com/searchid.php?ID=2526"]R-7 the Soviet intercontinental ballistic missle[/ame] (R-7)
[ame="http://www.orbithangar.com/searchid.php?ID=2530"]Pacth to the R-7[/ame] (Reccomended Patch for R-7)
This doesn't have an exploding warhead but with BombMFD you can make it do so at impact. Unlike the Minuteman II this can be aimed at any target with simple coordinate input before launch.
I see computerx is still working on this I'm sure when he finishes it it'll be worth the time and effort thanks though oh is someone still working on WO2001 it would be so cool if they finished the hangers and cargo loaders for the orions like they said take care for now.