[RFEngineer]

I'd add:

B-2
XB-70 (my personal favorite)
F-117 (granted, maybe only an electrical engineer can find this a thing of beauty....)

Oh, heck, they're ALL beautiful, who am I kidding?

[RunningWolf]

I know someone (now perished) that was on the B70 project

Wolf

[freedumb2003]

Hard to figure where the XB 70 belongs. I guess if I list the SR-71, it is fair to list it (odd fellow that it is):

B2/F117 -- effective, but not what I would call "physically beautiful." But lots of guys find their chosen women more beautiful than Catherine Zeta-Jones (with good reason). I always signpost this as my opinion. :)