Keywords: US Navy 090902-N-4301H-296 Navy Diver 1st Class Brandon Wiggins Navy Diver Chief Chad Shortall increases the pressure inside a pressure chamber.jpg en SAN DIEGO Calif Sept 2 2009 Navy Diver 1st Class Brandon Wiggins an instructor at Naval Special Warfare Center watches Second Phase Basic Underwater Demolition/SEAL BUD/S candidates on a television while Navy Diver Chief Chad Shortall increases the pressure inside a pressure chamber Shortall is changing the pressure to see how each candidate's body will react to underwater pressure before dive training Diving is an eight-week course during the second phase of training that prepares develops and qualifies candidates as basic combat swimmers BUD/S candidates must complete three phases of training and qualify in advanced training during a yearlong program to become Navy SEALs U S Navy photo by Mass Communication Specialist 2nd Class Shauntae Hinkle-Lymas/Released 2009-09-02 090902-N-4301H-296 Navy http //www navy mil/view_image asp id 75853 U S Navy photo by Mass Communication Specialist 2nd Class Shauntae Hinkle-Lymas PD-USGov-Military-Navy Naval Special Warfare Center United States Navy Divers |