Did this one for NASA friends (see photos in SPS Reference Photo Gallery). I did this one entirely with PS 7, generating line drawing with pen/path saves. Learned two things on this one:
1. White airplanes are by far the hardest to render in profiles.

GM, Blowhard and others-thanks for the may tips on handling such beasts especially using less than pure white for the subject base.
2. IMHO if you're constantly working to a fixed final size (A3) and pixel size with rendering in PS, it makes no sense to use Illustrator. I previously always did line drawings in Illustrator, then pasted as paths into PS. With PS path/vector/scale capability, I found myself constantly tinkering with the shapes in the PS WIP and the original Illustrator file became useless.
Thanks, M8s