If you haven't seen Flying's "Top 25 Coolest Aircraft" yet, check it out. Over the past few days the list of the coolest of the cool has generated hundreds of thousands of views as well as more than a few comments. Sorry for the tease, but we're being careful not to spoil the suspense. Two entries that have generated more comments than any others are one nearly hypersonic entry and another decidedly subsonic one. The least bulky one of the bunch, likewise, has attracted a lot of interest, both from those who'd love to fly it from those who get a little scared just looking at photos of the thing.