Photo from Seafair shows U-10 and U-37 bumping in Heat 2A. Picture's especially interesting because the U-37's engine just blew, which caused the bump. Owen Blauman caught the split-second after it happened. Note the black smoke coming out of the U-37's tail.

Full story and bigger photos at: http://kndu.com/Global/story.asp?S=6900523&nav=menu484_4_6