Lightweight Hammershock Testing

National Technical Systems (NTS)

Lightweight Shock Machine (LWSM) Testing per MIL-DTL-901E is the military specification covering shock test requirements for shipboard machinery, equipment, systems and structures. Anyone who produces an item for military use in any of these shipboard categories will likely need to complete this testing. The purpose of this testing is to verify the ability of shipboard installations to withstand shock loadings which may be incurred during wartime service due to the effects of conventional or nuclear weapons. These requirements grew out of the Navy’s experiences during World War II and the subsequent underwater explosion (UNDEX) experiments. In many cases, it was found that critical ship systems could be disabled by the shock effects of nearby weapons explosions that were not a direct hit on the ship itself.