Some great shots of the B-2

[overscan (PaulMM)]

http://www.richard-seaman.com/Aircraft/AirShows/Edwards2005/B2/index.html

 

[bobbymike]

An airshow narrator said of the B-2 during the show flyover: "The hole in the sky that nightmares fall out of."

Thought that was pretty accurate description.

 

[donnage99]

that's a really good pic of the b-2's "beaver tail" deployed.

 

[pesholito]

Here are some more great stuff in high resolution too.
http://www.whiteman.af.mil/photos/mediagallery.asp?galleryID=2034&?id=-1&page=5&count=48
http://www.flickr.com/photos/mulesafpilot/sets/72157606282392046/
The ones on Flickr are taken from a guy who has actually flown the thing. Check out the comments under his pics.

 

[Sundog]

Those Flickr pictures by the B-2 pilot are excellent.

 

[TomcatViP]

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[Sundog]

OMG! It must be the XBS-Super secret "Not B-2s" like those seen over Texas...oh wait, no it's just three B-2s. Cool video, none the less B-2s in flight video Twitter link.

 

[AGS-1787]

What type of airfoil does b-2 use? it doesn't look conventional at all and the wing looks thick. I also had a similar impression when I saw the f-22 wing while parked at an airshow, but it looks like it is the complex washout they incorporated into the wing design. The su-57 seems to have a less aggressive design, it is like the Russians prefer their wings a straight as possible.

 

[Trident]

Probably some kind of supercritical airfoil, somewhat like a modern airliner (these also have fairly high t/c ratios for a transonic wing).

What you observed on the F-22 is called conical camber, and yes the Su-57 has a similar geometry, albeit less pronounced. My guess is that this is related to the sweep angle (which is of course lower on the F-22), with more sweep requiring less camber. On the Concorde and Tu-144 SSTs the outer wings with lower sweep are also more dramatically cambered than the inboard, highly swept part.

One supersonic aircraft which didn't bother with any such complexities incidentally is the YF-23!