Wil S Hylton, The Deep End; Two years after Air France Flight 447 fell out of the sky, the main part of the wreckage has been located at the bottom of the Atlantic Ocean. But will teh mystery of the crash ever be solved? New York Times Magazine, May 8, 2011 (title in print).
http://www.nytimes.com/2011/05/08/magazine/mag-08Plane-t.html?_r=1&scp=2&sq=air%20france%20&st=cse
My comment:
(a) The photo in web page 1 shows the yellow Remus 6000 floating in water. See also the photo in web page 2.
(b) It is about the robot locating teh wreckage. Please read only
web pages 1, 3-4 and 8.
In web page 3, starting from the paragraph the begins with "In the weeks after Flight 447 went down."
The "pitot" in photograph 2 is explained in web page 4.
In web page 8, just the paragraph that begins with the sentence "But what happened in those final hours may not be a mystery forever."