Army Sgt. Richard Sloan, U.S. Army Golden Knight Parachute Team parachutist, and Sgt. 1st Class J.D. Berentis team leader, observe wind speeds before jumping out of a C-31A Friendship Fokker during Joint Base Langley-Eustis’ Air Power over Hampton Roads open house at Langley Air Force Base, Va., May 15, 2011. The Golden Knights are among the most formidable parachuting competitors and demonstrators in the world today. (U.S. Air Force photo by Airman 1st Class Teresa Zimmerman)