The kinetic energy they gain is siphoned from the earth (gravity) with aerodynamic design to minimize energy loss unlike the broadside of a shuttle designed for resistance.
Agree they don't have as much net energy as a modern nuke, but imagine focusing even 1/50th the energy of a nuke on a 6" target. Stands to reason it'd make a helluva divot.
The kinetic energy they gain is siphoned from the earth (gravity) with aerodynamic design to minimize energy loss unlike the broadside of a shuttle designed for resistance.
Agree they don't have as much net energy as a modern nuke, but imagine focusing even 1/50th the energy of a nuke on a 6" target. Stands to reason it'd make a helluva divot.