170511-N-VP310-420 PHILADELPHIA (May 11, 2017) Vice Adm. Thomas J. Moore, commander of Naval Sea Systems Command (NAVSEA), and Robert Tronzo, a mechanical engineer with Naval Surface Warfare Center Philadelphia Division (NSWCPD), discuss the progress of the shock and vibration lab test facilities during Moore's visit. NSWCPD’s Deck Simulating Shock Machine is 1 of only 3 in the continental U.S. and the only owned by the U.S. Government, saving the Navy roughly $70,000 per test, as compared to alternative methods. (U.S. Navy photo by Petty Officer 1st Class Richard Hoffner/Released)