At first, I thought it was an amazing coincidence how perfectly the "large aircraft part" fit inside the Super Guppy. Then I realized that if a company was planning on ever having to transport a piece like this by air, odds are that they could have included the Super Guppy's cargo bay size & shape as a design parameter for that aircraft part. See, there are smart people at work somewhere in this world. Even if they are outnumbered by the rest of us something like 10:1!