PASCAGOULA, Miss. - Petty Officer 1st Class Demosthenes Daniel, an electrician's mate, shows Petty Officer 3rd Class Adam Novotny, a machinery technician, parts of one of Coast Guard Cutter Bertholf's ship service diesel generators (SSDG), April 2, 2008. Bertholf has three identical SSDGs that can be aligned to primary, standby and emergency backup status. U.S. Coast Guard photo by Petty Officer 3rd Class Michael Anderson.