The Washington Post

The Pentagon’s electromagnetic ‘rail gun’ makes its public debut

The railgun, a futuristic electromagnetic weapon that can fire a projectile at seven times the speed of sound, made its public debut at the the U.S. Navy's Science and Technology Expo. (Reuters)

First it mounted a laser aboard a ship in the Persian Gulf. Now the Navy has publicly unveiled another futuristic weapon: the electromagnetic “rail gun.”

In development for years, the weapon would be able to fire a projectile at Mach 7, or seven times the speed of sound, hitting targets 110 miles away. (By comparison, a Hellfire missile travels a little over Mach 1.)

Instead of gunpowder as a propellant, it uses electromagnetic pulses, and the projectiles hit with such overwhelming force that they don’t need to be armed with explosives. The impact from traveling at such amazing speeds is enough, thank you very much. Lasers sizzle rather than go boom, as some have said. The rail gun definitely has one heck of a boom.

The gun made its debut at the Navy’s Future Force Science and Technology Expo at the Washington Convention Center this week.

One top Navy official recently likened the impact to “a freight train going through the wall at a hundred miles an hour.” The lack of gunpowder and explosive warheads eliminates some significant safety hazards for Navy crews, officials say.

By the way, here’s video of that laser:

The Navy is unveiling a laser weapons capability that can be used aboard ships at sea. (U.S. Navy)

[RELATED: With photos and video, Navy shows how its new laser gun works at sea]

Christian Davenport covers federal contracting for The Post's Financial desk. He joined The Post in 2000 and has served as an editor on the Metro desk and as a reporter covering military affairs. He is the author of "As You Were: To War and Back with the Black Hawk Battalion of the Virginia National Guard."

The Freddie Gray case

Please provide a valid email address.

You’re all set!

Campaign 2016 Email Updates

Please provide a valid email address.

You’re all set!

Get Zika news by email

Please provide a valid email address.

You’re all set!
Comments
Show Comments

Sign up for email updates from the "Confronting the Caliphate" series.

You have signed up for the "Confronting the Caliphate" series.

Thank you for signing up
You'll receive e-mail when new stories are published in this series.
Most Read

world

national-security

checkpoint

Success! Check your inbox for details.

See all newsletters

Close video player
Now Playing
More from The Post