That's a great idea and would turn some heads at the field. The Mk7 looks like the biggest bomb in size. Man that thing is huge. I'm not sure how the F-100 got off the ground. The F-100 carried the B61 as well as the Mk28(B28) thermonuclear weapons. I think the Mk28 or B61 looks like the best candidate for a centerline tank as it looks the most streamlined. Here's a few pics I found. I would be pretty nervous being in a room full of those things.