U.S. Army U.S. Army Test and Evaluation Command Skip Navigation Links
Skip navigation links
Test & Evaluation
Information and News
Public Affairs (PAO)
Skip navigation links
Climatic Test Facilities
Dynamics Testing and Facilities
Electromagnetic Test FacilitesExpand Electromagnetic Test Facilites
Electronic Warfare
Aerial Cable Range
Chemistry Laboratory
High Energy Laser Systems Test Facility
Information Operations Laboratory
Launch Facilities
Metallurgy Laboratory
Pulsed Laser Vulnerability Test System (PLVTS)
Warheads Test Facilities & Impact Areas
Hazardous Test Area (HTA)
Warhead Impact Target (WIT)
National Radar Cross Section Test Facility (NRTF)
Holloman High Speed Test Track (HHSTT)
Acoustic Research Complex (ARC)
Space Facilities
Photos: Lightning and the Lightning Test Facility


Lightning strikes the earth, on average, more than 100 times each second. The typical lightning stroke is six miles long. The temperature of the return stroke, or primary flash, can reach 50,000°F, or nearly five times hotter than the surface of the sun. Property losses from lightning total in the hundreds of millions of dollars each year in the commercial and private sectors alone. Losses to military facilities and equipment are equally high and can only be expected to rise as semiconductor devices, which are inherently more susceptible to lightning effects, are increasingly used in military equipment. To facilitate the study and mitigation of this devastatingly powerful natural phenomenon, WSMR has installed a Lightning Test Facility (LTF) to simulate the direct and indirect effects of lightning strikes.

Direct effects of lightning include burning, eroding, blasting, and structural deformation caused by lightning arc attachment, as well as by the high-pressure shock waves and magnetic forces produced by the associated high currents. Indirect lightning effects are predominantly those resulting from the interaction of the electromagnetic fields accompanying lightning with electrical devices.

Working with the LTF, WSMR engineers have developed a lightning effects test capability in accordance with MIL STD-1757A, which establishes standards for the waveforms used to determine direct and indirect effects of lightning strikes.

This page was last updated on 4/8/2010 10:23 AM