A pair of Blue Angels perform the spectacular Knife-Edge Pass in their F/A-18 Hornets.
Air show photography tip: The Blue Angel's and Thunderbird's opposing passes are really impressive to watch and very difficult to photograph. With a closing speed in the many hundreds of MPH, the exact moment of crossing is nearly impossible to predict if you are using a reasonably long telephoto lens.
A camera with a fast frame rate is a good solution to this problem. The Canon EOS 1D Mark IV shooting at 10 frames per second makes the hit rate about 75% for these shots.
Here I am tracking one jet and catching the other jet blurring past.