Juergen Nieveler wrote:
[snip]

Redesign a B747 or A380 with a conveyor belt and a hole in the bottom
so that it can drop scores of smart bombs, one at a time, and you'll
have all the air support you'll need for the ground forces.

Juergen Nieveler

Make the hole in the side rather than the bottom. Civilian aircraft
have large cargo holds whose doors are on the side.

The aircraft have sufficient space to carry bombs, missiles and a gun.

Andrew Swallow